Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
thi hanh » thi thanh
van hanh » ban hanh, van anh, van ban
so sach » so sanh, bo sach, co sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
thi van » thi lan, thi nang
ban xuc » ban xu, ban duoc, ban phuc
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: so sach ky nang xa hoi. ((thi van) OR (thi hanh)) ban xuc ((van hanh) or (van thanh)) tri cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky nang xa hoi. ((thi van) OR (thi hanh)) ban xuc ((van hanh) OR (van thanh)) tri cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky nang xa hoi. ((thi van) OR (thi hanh)) ban xuc ((van hanh) or (van thanh)) tri cua te".
• Adding a wildcard symbol may retrieve word variants: so sach ky nang xa hoi. ((thi van) OR (thi hanh)) ban xuc ((van hanh) or (van thanh)) tri cua te*.