Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
chuan xang » chuan trang, chua nang, chuan san
chua xang » chua nang, chuc nang, chu bang
cong nang » cong ngang, cong lang, cong nong
nang sang » nang song, nong san
chi hanh » chi nhanh, chi thanh, thi hanh
doi chi » doi khi
sang ma » tang ma, nang ma, sang tao

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 ((chuan xang) or (chua xang)) cong nang sang ma~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi hanh - canh trinh ((chuan xang) OR (chua xang)) cong nang sang ma*.