Perhaps you should try some spelling variations:
hanh tran » hanh trang, thanh tran, hanh tram
van thong » van thuong, van phong, va thong
chi xanh » chi anh, chi danh, chi hanh
tran van » luan van
cong tac » cong ty
toan cau » toan ban, toan tap, toan tai
toan cao » toan ban, toan tap
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 - hanh tran van thong ((cong san) or (cong tac)) ((toan cau) or (toan cao))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - hanh tran van thong ((cong san) OR (cong tac)) ((toan cau) OR (toan cao)).
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - hanh tran van thong ((cong san) or (cong tac)) ((toan cau) or (toan cao))*.