Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
trinh mat » trinh vat, trinh may, trinh mau
mat thong » suat thong, xuat thong, mang thong
cong tan » cong tac, cong thanh, cong ty
cong san » cong tac
than cau » toan cau, phan cau, than cap
ho cuu » ho chu, ho cua, so cuu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho cuu tinh - canh trinh mat thong ((cong tan) or (cong san)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho cuu tinh - canh trinh mat thong ((cong tan) OR (cong san)) than cau.
• Adding a wildcard symbol may retrieve word variants: ho cuu tinh - canh trinh mat thong ((cong tan) or (cong san)) than cau*.