Perhaps you should try some spelling variations:
thanh lai » thanh hai, thanh lap, thanh loi
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, ban thanh, va tinh
te sach » toc sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va
cuu tre » cua tre, cau tren, cau treo

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ty nang xa hoi. ((hieu ve) OR (hieu van)) pham duc va thanh lai ((dung trong) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang xa hoi. ((hieu ve) OR (hieu van)) pham duc va thanh lai ((dung trong) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang xa hoi. ((hieu ve) OR (hieu van)) pham duc va thanh lai ((dung trong) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang xa hoi. ((hieu ve) OR (hieu van)) pham duc va thanh lai ((dung trong) or (cuu tre))*.