Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
thu sai » thu hai, thu tai, thu san
nang xa » nang x, lang xa, nang ma
van dau » van dao, phan dau
dau luc » cau luc, dau luan, dau nuoc
va hanh » van hanh, va thanh, va danh
cua tre » cuu tre, cua triet, dua tren
sai ky » sac ky
luc va » duc va, tuc va, loc va
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sai ky nang xa hoi. hieu van dau luc va hanh vi ((cua tre) OR (cua te))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sai ky nang xa hoi. hieu van dau luc va hanh vi ((cua tre) OR (cua te))".
• Adding a wildcard symbol may retrieve word variants: thu sai ky nang xa hoi. hieu van dau luc va hanh vi ((cua tre) OR (cua te))*.