Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
nhung cong » dung cong, thong cong, hang cong
thien anh » thien danh, tien anh, thien chanh
canh tran » canh tranh, hanh trang, banh trang
van nhung » van nhuong, va nhung, van hung
tran van » luan van
cong tac » cong ty
cac cau » cac mau, bac cau, ca cau
van hau » van ha, van hai, van dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thien anh) OR (thien thanh)) - canh tran van nhung cong tac ((cac cau) or (van hau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thien anh) OR (thien thanh)) - canh tran van nhung cong tac ((cac cau) OR (van hau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thien anh) OR (thien thanh)) - canh tran van nhung cong tac ((cac cau) or (van hau))".
• Adding a wildcard symbol may retrieve word variants: hoc ((thien anh) OR (thien thanh)) - canh tran van nhung cong tac ((cac cau) or (van hau))*.