Perhaps you should try some spelling variations:
theo chiet » theo chieu, thep thiet
chiet tach » chieu sach
nhung cong » dung cong, thong cong, hang cong
tang cua » mang cua, hang cua, tang luan
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chiet tach - hanh ((tang cua) or (dung luan)) nhung cong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chiet tach - hanh ((tang cua) OR (dung luan)) nhung cong tan toan cao.
• Adding a wildcard symbol may retrieve word variants: theo chiet tach - hanh ((tang cua) or (dung luan)) nhung cong tan toan cao*.