Perhaps you should try some spelling variations:
pham thuc » phap thuc, pham chuc, nham thuc
thien van » thi van
toc sach » hoc sach, doc sach, thuoc sach
van dinh » van minh, van dich, xuan dinh
van pham » san pham, van phan, van phat
sach ky » sac ky, sach y, sach ty
va dinh » va kinh, va tinh, vu dinh
nang xa » nang x, lang xa, nang ma
cua tre » cuu tre, cua triet, dua tren
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: toc sach ky nang xa hoi. thien van pham thuc ((van dinh) OR (va dinh)) dau ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky nang xa hoi. thien van pham thuc ((van dinh) OR (va dinh)) dau ((cua tre) OR (cua te))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ky nang xa hoi. thien van pham thuc ((van dinh) OR (va dinh)) dau ((cua tre) or (cua te))*".