Perhaps you should try some spelling variations:
tu sang » thu sang, tu san, tu quang
cua tre » cua te, cua triet, dua tren
va hanh » van hanh, va thanh, va danh
cam luc » cam xuc, cau luc
hieu ve » hieu va, hieu van
cuu tre » cau tren, cau treo
nang xa » nang x, lang xa, nang ma
tu lang » cu lang, tu lanh, xu lang
luc va » duc va, tuc va, loc va
ve cam » ve cham, ve cac, va cam

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sang) OR (tu lang)) ky nang xa hoi. hieu ve cam luc va hanh vi ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sang) OR (tu lang)) ky nang xa hoi. hieu ve cam luc va hanh vi ((cua tre) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sang) OR (tu lang)) ky nang xa hoi. hieu ve cam luc va hanh vi ((cua tre) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: ((tu sang) OR (tu lang)) ky nang xa hoi. hieu ve cam luc va hanh vi ((cua tre) or (cuu tre))*.