Perhaps you should try some spelling variations:
ho chieu » theo chieu, hoc thieu, doi chieu
doc hieu » toc thieu, hoc thieu, hoc hien
vat dung » van dung, viet dung, mat duong
cong tam » cong tac, cong tan, cong nam
va dung » van dung, va duong, va ung
tam pha » tam phat, cam pha, dam pha
pha cau » phan cau, phap cau, pha cac

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 (doc hieu)) xanh - canh tranh ((va dung) or (vat dung)) cong tam pha cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doc hieu)) xanh - canh tranh ((va dung) OR (vat dung)) cong tam pha cau.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (doc hieu)) xanh - canh tranh ((va dung) or (vat dung)) cong tam pha cau*.