Perhaps you should try some spelling variations:
hieu phan » phieu phan, lieu phan, hieu pham
dat luan » dau luan, dat quang, bai luan
dan luan » doanh luan, dung luan, tang luan
thu san » thuy san, thu ban, phu 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
san ky » sang ky, van ky, dan 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 san ky nang xa hoi. hieu phan ((dat luan) OR (dan luan)) va hanh vi cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu san ky nang xa hoi. hieu phan ((dat luan) OR (dan luan)) va hanh vi cua tre".
• Adding a wildcard symbol may retrieve word variants: thu san ky nang xa hoi. hieu phan ((dat luan) OR (dan luan)) va hanh vi cua tre*.