Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, truong thanh
quy trong » luy trong, thuy trong, quy trinh
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
anh tang » anh bang, anh dang, anh nang
tang quy » tan quy, nang quy, tang quan
cong tan » cong tac, cong san, cong ty
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chu xanh - anh tang quy trong ((cong tan) or (cong thanh)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - anh tang quy trong ((cong tan) OR (cong thanh)) toan cau.
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - anh tang quy trong ((cong tan) or (cong thanh)) toan cau*.