Perhaps you should try some spelling variations:
thien van » thi van
pham thuc » phap thuc, pham chuc, nham thuc
hoc sach » hoc sinh, hoc cac, hoc anh
van pham » san pham, van phan, van phat
dinh dai » dinh dat, dinh dao, dinh tai
sinh dai » sinh thai, si dai, sinh vat
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
thuc va » thuc vat, thuc dan, thuc day
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 pham thuc va ((dinh dai) OR (sinh dai)) cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc sach ky nang xa hoi. thien van pham thuc va ((dinh dai) OR (sinh dai)) cua tre".
• Adding a wildcard symbol may retrieve word variants: hoc sach ky nang xa hoi. thien van pham thuc va ((dinh dai) OR (sinh dai)) cua tre*.