Perhaps you should try some spelling variations:
hieu phan » phieu phan, lieu phan, hieu pham
dat luan » dan luan, dat quang, bai luan
dau luan » dan luan, khau luan, dau quang
thu sai » thu hai, thu tai, thu san
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, cua triet
sai ky » sac ky
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 ky nang xa hoi. hieu phan ((dat luan) OR (dau luan)) va hanh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sai ky nang xa hoi. hieu phan ((dat luan) OR (dau luan)) va hanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: thu sai ky nang xa hoi. hieu phan ((dat luan) OR (dau luan)) va hanh vi cua tre*.