Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, truong thanh
tieu xanh » tieu danh, chieu xanh, dieu hanh
hang luan » tang luan, dung luan
van nhung » van nhuong, va nhung, van hung
cong tan » cong tac, cong san, cong ty
toan cau » toan cao, toan ban, toan tai
toan tap » toan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu xanh - hang luan van nhung ((cong tan) OR (cong thanh)) ((toan cau) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - hang luan van nhung ((cong tan) OR (cong thanh)) ((toan cau) OR (toan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - hang luan van nhung ((cong tan) OR (cong thanh)) ((toan cau) or (toan tap))".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - hang luan van nhung ((cong tan) OR (cong thanh)) ((toan cau) or (toan tap))*.