Perhaps you should try some spelling variations:
hanh trinh » canh tranh
dung cong » dung trong
cong sang » cong san, cong lang, cong vang
sang than » cang thang, dang thanh, sang tao
ho chieu » theo chieu, hoc thieu, doi chieu
chao chu » cho chu, cua chu, cao cho
than cao » toan cao, thai cao, than cap
va dung » van dung, va duong, vat dung

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 (chao chu)) xanh - ((hanh trinh) or (hanh chinh)) va dung cong sang than cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (chao chu)) xanh - ((hanh trinh) OR (hanh chinh)) va dung cong sang than cao.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (chao chu)) xanh - ((hanh trinh) or (hanh chinh)) va dung cong sang than cao*.