Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
nhung cong » dung cong, hang cong, nhung don
thong cong » trong cong, tong cong, thong thong
trinh vat » trinh van, trinh luat, sinh vat
khi xanh » khia canh, thi hanh, thi anh
phan cau » phan dau, phan cac, phan tu
hang dau » hang va, hang tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi khi xanh - canh trinh vat ((nhung cong) or (thong cong)) dan ((phan cau) or (hang dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi khi xanh - canh trinh vat ((nhung cong) OR (thong cong)) dan ((phan cau) OR (hang dau)).
• Adding a wildcard symbol may retrieve word variants: doi khi xanh - canh trinh vat ((nhung cong) or (thong cong)) dan ((phan cau) or (hang dau))*.