Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tranh cua » doanh cua, manh cua
tong cong » trong cong, cong cong, dung cong
doc hieu » toc thieu, hoc thieu, hoc hien
dan toan » van toan, dan than, manh toan
toan ban » van 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: ((doc hieu) or (doi chi)) xanh - canh tranh cua ((nhung cong) or (tong cong)) dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((doc hieu) OR (doi chi)) xanh - canh tranh cua ((nhung cong) OR (tong cong)) dan toan ban.
• Adding a wildcard symbol may retrieve word variants: ((doc hieu) or (doi chi)) xanh - canh tranh cua ((nhung cong) or (tong cong)) dan toan ban*.