Perhaps you should try some spelling variations:
hoc phien » thuoc phien, hoc nghien, hoc phan
phien nam » hien nay, vien nam, mien nam
danh thue » danh thuc, doanh thuc, dan thuc
danh tac » canh tac, danh bac, doanh tai
hoa phan » hoa dan, co phan
canh cac » canh tac, hanh cac, canh giac
bang hoc » nang hoc, mang hoc, quang hoc
tac bang » tac vang, cac bang, tao bang
cong tac » cong ty
dan thue » dan thuc, dan thu, van thue
hien nam » hien nay, vien nam, mien nam
quan hoc » quang hoc, luan hoc, quan doc
phan ban » phan banh, phan van, phan ba
tac van » tac vang, tac va, tac can
cac van » cac dan

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 van hoc phien nam ) or ((( danh tac quan hoc hien nam ) or ( ((danh thue) OR (dan thue)) quan hoc hien nam ))))) or ((( cong tac bang hoc phien ban ) or ( canh cac van hoa phan ban ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( danh tac van hoc phien nam ) OR ((( danh tac quan hoc hien nam ) OR ( ((danh thue) OR (dan thue)) quan hoc hien nam ))))) OR ((( cong tac bang hoc phien ban ) OR ( canh cac van hoa phan ban )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( danh tac van hoc phien nam ) or ((( danh tac quan hoc hien nam ) or ( ((danh thue) OR (dan thue)) quan hoc hien nam ))))) or ((( cong tac bang hoc phien ban ) or ( canh cac van hoa phan ban ))))".
• Adding a wildcard symbol may retrieve word variants: (((( danh tac van hoc phien nam ) or ((( danh tac quan hoc hien nam ) or ( ((danh thue) OR (dan thue)) quan hoc hien nam ))))) or ((( cong tac bang hoc phien ban ) or ( canh cac van hoa phan ban ))))*.