Perhaps you should try some spelling variations:
tan thanh » tran thanh, tang thanh, toan thanh
van pham » san pham, van phat, van tham
van phan » van phong, van thanh, luan phan
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
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: su sach ky nang xa hoi. thien ((van pham) or (van phan)) duc tan thanh san ((cua tre) OR (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang xa hoi. thien ((van pham) OR (van phan)) duc tan thanh san ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang xa hoi. thien ((van pham) or (van phan)) duc tan thanh san ((cua tre) OR (cua te))".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. thien ((van pham) or (van phan)) duc tan thanh san ((cua tre) OR (cua te))*.