Perhaps you should try some spelling variations:
phuoc hien » phuoc hiep, thuoc phien, thuc hien
dung phuoc » duong phuoc, dung thuoc, dang phuoc
phien nay » phien nam, phien ban, bien nay
hoc phien » thuoc phien, hoc nghien, hoc phan
thin dung » tin dung, trinh dung, thong dung
tac dong » tac trong, bat dong, dao dong
thi dung » thi huong, thi nhung, thi cong
tac dung » sach dung, xay dung, tin dung
hien nam » phien nam, vien nam, mien nam
dung hoc » dong hoc, dung thuoc, trung hoc
danh tac » canh tac, danh bac, doanh tai
danh van » doanh van, dinh van, anh van
hien nay » hien dai
lao dong » van dong
dang van » hoang van, hang va
ha dong » hoat dong, van dong

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (( danh ((tac dong) or (((lao dong) or (ha dong)))) hoc hien nay ) or ((((( ((danh van) or (dang van)) dung hoc hien nam ) or ( danh tac dung phuoc hien nam ))) or ( danh ((thin dung) OR (thi dung)) hoc phien nay ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( danh ((tac dong) OR (((lao dong) OR (ha dong)))) hoc hien nay ) OR ((((( ((danh van) OR (dang van)) dung hoc hien nam ) OR ( danh tac dung phuoc hien nam ))) OR ( danh ((thin dung) OR (thi dung)) hoc phien nay )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( danh ((tac dong) or (((lao dong) or (ha dong)))) hoc hien nay ) or ((((( ((danh van) or (dang van)) dung hoc hien nam ) or ( danh tac dung phuoc hien nam ))) or ( danh ((thin dung) OR (thi dung)) hoc phien nay ))))".
• Adding a wildcard symbol may retrieve word variants: (( danh ((tac dong) or (((lao dong) or (ha dong)))) hoc hien nay ) or ((((( ((danh van) or (dang van)) dung hoc hien nam ) or ( danh tac dung phuoc hien nam ))) or ( danh ((thin dung) OR (thi dung)) hoc phien nay ))))*.