Perhaps you should try some spelling variations:
chieu tach » chiet tach, chieu sach, chieu tinh
dung cong » dung trong
anh tran » anh toan, anh trac, canh tranh
tran van » luan van
van dung » van dong, xay dung, tin dung
cong anh » cong danh, dong anh, hong anh
tuan cau » toan cau, quan cau, tuan cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu tach) or (chiu trach)) - anh tran van dung cong anh tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu tach) OR (chiu trach)) - anh tran van dung cong anh tuan cau.
• Adding a wildcard symbol may retrieve word variants: theo ((chieu tach) or (chiu trach)) - anh tran van dung cong anh tuan cau*.