Perhaps you should try some spelling variations:
thuoc phien » thuc hien, phuoc hien, thuat phien
van thuoc » va thuoc, ban thuoc, van thuc
tac nang » tac vang, tap nang, tich nang
hanh cac » hang cac, hanh cat, nhanh cay
tai nang » thi nang, tai lang, dai nang
danh tac » canh tac, danh bac, doanh tai
quan hoc » quang hoc, luan hoc, quan doc
hien nam » phien nam, hien nay, vien nam
tac van » tac vang, tac va, tac can
van hoc » van hoa
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 hien nam ) or ( danh tac quan hoc hien nam ))) or ((( cong ((tac nang) OR (tai nang)) thuoc phien ban ) or ( hanh cac van thuoc phien ban ))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((( danh tac van hoc hien nam ) OR ( danh tac quan hoc hien nam ))) OR ((( cong ((tac nang) OR (tai nang)) thuoc phien ban ) OR ( hanh cac van thuoc phien ban )))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(((( danh tac van hoc hien nam ) or ( danh tac quan hoc hien nam ))) or ((( cong ((tac nang) OR (tai nang)) thuoc phien ban ) or ( hanh cac van thuoc phien ban ))))".
• Adding a wildcard symbol may retrieve word variants: (((( danh tac van hoc hien nam ) or ( danh tac quan hoc hien nam ))) or ((( cong ((tac nang) OR (tai nang)) thuoc phien ban ) or ( hanh cac van thuoc phien ban ))))*.