Perhaps you should try some spelling variations:
quang cuong » quang phuong, tang cuong, quang dung
hanh trinh » canh tranh, hanh chinh
quang tung » quang trung, quang dung, quang hung
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
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 - hanh trinh ((quang tung) or (quang cuong)) cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - hanh trinh ((quang tung) OR (quang cuong)) cong tan toan cau*.