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
trung hoa » trung hoc
trung ha » trung hoc, trung tam, trung cap
cong tac » cong ty
phat cau » phan cau, phap cau, phat am
pha cau » phan cau, phap cau, pha cac

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 - thanh ((trung hoa) or (trung ha)) nhung cong tac ((phat cau) OR (pha cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chiet tach - thanh ((trung hoa) OR (trung ha)) nhung cong tac ((phat cau) OR (pha cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chiet tach - thanh ((trung hoa) or (trung ha)) nhung cong tac ((phat cau) OR (pha cau))".
• Adding a wildcard symbol may retrieve word variants: theo chiet tach - thanh ((trung hoa) or (trung ha)) nhung cong tac ((phat cau) OR (pha cau))*.