Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
cang thang » cong thanh, dang thanh
chua nang » chuc nang, chua xang, kha nang
cong cang » cong cong, cong lang, cong vang
chi hanh » chi nhanh, chi thanh, thi hanh
cuu nang » chuc nang, cam nang, cuu van
thang va » hang va, trang va, thong va
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi chi hanh - canh trinh ((chua nang) or (cuu nang)) cong cang thang va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi hanh - canh trinh ((chua nang) OR (cuu nang)) cong cang thang va*.