Perhaps you should try some spelling variations:
thien van » thi van
phan thuc » phap thuc, pham thuc, phan khuc
nhan thuc » nhan luc, dan thuc, toan thuc
hoc sach » hoc sinh, hoc cac, hoc anh
dinh dai » dinh dat, sinh dai, dinh dao
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
va dinh » van dinh, va kinh, va tinh
cua tre » cua te, cuu tre, cua triet

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sach ky nang xa hoi. thien van ((phan thuc) OR (nhan thuc)) va dinh dai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc sach ky nang xa hoi. thien van ((phan thuc) OR (nhan thuc)) va dinh dai cua tre".
• Adding a wildcard symbol may retrieve word variants: hoc sach ky nang xa hoi. thien van ((phan thuc) OR (nhan thuc)) va dinh dai cua tre*.