Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hang cong » dang cong, hang nong, bang cong
ho chieu » theo chieu, hoc thieu, doi chieu
tranh va » tranh van, trang va, trinh va
va hang » van hang, va nang, va lang
tan van » tran van, tang van, dang van
luan » quan, lan

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

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