Perhaps you should try some spelling variations:
thanh luan » tranh luan, thanh xuan, thanh tuan
phung cong » nhung cong, phong cong, nhung chong
hung cong » nhung cong, hung cuong, dung cong
chi xanh » chi anh, chi danh, chi hanh
toan cao » toan tap
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: doi chi xanh - thanh luan van ((hung cong) or (phung cong)) san ((toan cao) OR (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi xanh - thanh luan van ((hung cong) OR (phung cong)) san ((toan cao) OR (toan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi chi xanh - thanh luan van ((hung cong) or (phung cong)) san ((toan cao) OR (toan ban))".
• Adding a wildcard symbol may retrieve word variants: doi chi xanh - thanh luan van ((hung cong) or (phung cong)) san ((toan cao) OR (toan ban))*.