Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
tranh van » tran van, trinh van, thanh van
van thong » van thuong, van phong, va thong
san chang » ban hang, dan chan, van khang
chi xanh » chi anh, chi danh, chi hanh
san hang » ban hang, van hang, san sang
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 xanh - canh tranh van thong cong ((san hang) or (san chang)) dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - canh tranh van thong cong ((san hang) OR (san chang)) dau.
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - canh tranh van thong cong ((san hang) or (san chang)) dau*.