Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
cua tre » cua te, cuu tre, cua triet
va hanh » van hanh, va thanh, va danh
ve cham » va cham, ve chat, vu cham
sac ky » cac ky, sai ky
ve cam » ve cac, va cam, ve cai
luc va » duc va, tuc va, loc va
tu sac » tu sach, tu cac, tu san
x hoi » xa hoi, o hoi, x ho

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

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