Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
chieu tinh » trieu tinh, lieu tinh, chau tinh
hang cong » dang cong, hang nong, bang cong
tranh va » tranh van, trang va, trinh va
cong dan » cong san, cong tan, huong dan
than cau » phan cau, than cap, thanh chau
toan cau » toan cao, toan ban, toan tap
va hang » van hang, va nang, va lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((hieu nganh) or (chieu tinh)) - canh tranh va hang cong dan ((than cau) or (toan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu nganh) OR (chieu tinh)) - canh tranh va hang cong dan ((than cau) OR (toan cau)).
• Adding a wildcard symbol may retrieve word variants: ho ((hieu nganh) or (chieu tinh)) - canh tranh va hang cong dan ((than cau) or (toan cau))*.