Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
nhan tai » hang tai, van tai, toan tai
hieu van » hieu va, thien van, lieu va
nang xa » nang x, lang xa, nang ma
dau tuc » dau tu, cau truc, dau nuoc
cuu tre » cua tre, cau tren, cau treo
sach ky » sac ky, sach y, sach ty
dao tuc » dao duc
va nhan » van nhan, ca nhan, va phan
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: thuat sach ky nang xa hoi. hieu van ((dau tuc) OR (dao tuc)) va nhan tai ((cuu tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ky nang xa hoi. hieu van ((dau tuc) OR (dao tuc)) va nhan tai ((cuu tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ky nang xa hoi. hieu van ((dau tuc) OR (dao tuc)) va nhan tai ((cuu tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: thuat sach ky nang xa hoi. hieu van ((dau tuc) OR (dao tuc)) va nhan tai ((cuu tre) or (cua te))*.