Perhaps you should try some spelling variations:
canh trinh » canh tranh, hanh trinh, canh tinh
vang thang » cang thang, van thang, lang thang
cong vang » cong lang, cong quang, cong ngang
chi hanh » chi nhanh, chi thanh, thi hanh
cuu nang » cam nang, cuu van, cao nang
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 ((chuc nang) or (cuu nang)) cong vang thang va~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chi hanh - canh trinh ((chuc nang) OR (cuu nang)) cong vang thang va*.