Perhaps you should try some spelling variations:
trinh luan » trinh luat, trinh quan, trinh han
hanh trinh » canh tranh, hanh chinh
luan nhung » luan chung, luan hung, quan nhung
nhung cong » dung cong, thong cong, hang cong
thue han » thue hai, thue thanh, thuc hanh
cong tan » cong tac, cong san, cong thanh
thue ha » thue hai, thue nha, thu ha
cuc » cuoc, chuc

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

• If you are trying to use Boolean operators, they must be ALL CAPS: cuc ((thue han) OR (thue ha)) - hanh trinh luan nhung cong tan ((toan ban) OR (van ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "cuc ((thue han) OR (thue ha)) - hanh trinh luan nhung cong tan ((toan ban) or (van ban))~".
• Adding a wildcard symbol may retrieve word variants: cuc ((thue han) OR (thue ha)) - hanh trinh luan nhung cong tan ((toan ban) or (van ban))*.