Perhaps you should try some spelling variations:
hanh trang » thanh trung, hanh trinh, minh trang
quan dung » quang dung, quan duong, qua dung
dung cong » dung trong
ho chieu » theo chieu, hoc thieu, doi chieu
theo chu » theo chieu, cho chu, chao chu
cong tac » cong ty
tac toan » tap toan, tam toan, hach 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: ((ho chieu) or (theo chu)) xanh - ((hanh trang) or (canh tranh)) quan dung cong tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chu)) xanh - ((hanh trang) OR (canh tranh)) quan dung cong tac toan cau.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chu)) xanh - ((hanh trang) or (canh tranh)) quan dung cong tac toan cau*.