Perhaps you should try some spelling variations:
doi chieu » doi chi, ho chieu, mot chieu
tranh cua » doanh cua, manh cua
hang cong » dang cong, hang nong, bang cong
doc hieu » toc thieu, hoc thieu, hoc hien
cua hang » cua dang, cua nhung, cua cong
cong van » cong vang, cong san, song van
toan tai » toan tap, doanh tai, toan cao
toan ban » van ban

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

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