Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
nang xa » nang x, lang xa, nang ma
luu van » cuu van, luan van, luu hanh
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
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 sai ky nang xa hoi. hieu ((ve cam) or (va cac)) luu van hanh vi ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky nang xa hoi. hieu ((ve cam) OR (va cac)) luu van hanh vi ((cua tre) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: tu sai ky nang xa hoi. hieu ((ve cam) or (va cac)) luu van hanh vi ((cua tre) or (cuu tre))*.