Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
thi chieu » thi chien, thi hieu, theo chieu
trinh vat » trinh van, trinh luat, sinh vat
vat nhung » va nhung, vap nhung, vai nhung
ho chieu » theo chieu, hoc thieu, doi chieu
cong dan » cong tan, huong dan, cong dong
cong san » cong tac

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 (thi chieu)) xanh - canh trinh vat nhung ((cong dan) or (cong san)) phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (thi chieu)) xanh - canh trinh vat nhung ((cong dan) OR (cong san)) phan tu.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (thi chieu)) xanh - canh trinh vat nhung ((cong dan) or (cong san)) phan tu*.