Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
thu sai » thu hai, thu san, thu ai
thu tai » tu tai, tru tai, thu hai
nang xa » nang x, lang xa, nang ma
dao luc » dao duc, dao tuc, bao luc
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
luc va » duc va, tuc va, loc va
vi cua » vai cua, di cua

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