Perhaps you should try some spelling variations:
cau tren » dau tren, ca tren, cau treo
sach ky » sac ky, sach y, sach ty
cu tren » tu tren, dua tren
cua tre » cua te, cuu tre, cua triet
tu sach » thu sach, su sach, te sach
cac xuc » cam xuc, cac nuoc, chat xuc
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, va danh
xuc va » duc va, tuc va, luc va
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky nang xa hoi. hieu ve cac xuc va hanh vi ((cua tre) or (((cu tren) or (cau tren))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang xa hoi. hieu ve cac xuc va hanh vi ((cua tre) OR (((cu tren) OR (cau tren)))).
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. hieu ve cac xuc va hanh vi ((cua tre) or (((cu tren) or (cau tren))))*.