Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
tranh cua » doanh cua, manh cua
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
cong tac » cong ty
toan tai » doanh tai, toan ban, toan cao
toan tap » toan ban
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((doi chi) or (hoc thieu)) xanh - canh tranh cua dung cong tac ((toan tai) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chi) OR (hoc thieu)) xanh - canh tranh cua dung cong tac ((toan tai) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: ((doi chi) or (hoc thieu)) xanh - canh tranh cua dung cong tac ((toan tai) or (toan tap))*.