Perhaps you should try some spelling variations:
va thanh » ban thanh, va tinh, le thanh
toc sach » hoc sach, doc sach, thuoc sach
cua viet » ca viet, hoa viet, cua vat
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
thi van » thi lan, thi hanh, thi nang
cac xuc » cac nuoc, chat xuc, cac cuoc
lam cua » nam cua, lam chat

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. thi van ((cac xuc) or (cam xuc)) ((va thanh) OR (gia thanh)) lam cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky nang xa hoi. thi van ((cac xuc) OR (cam xuc)) ((va thanh) OR (gia thanh)) lam cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ky nang xa hoi. thi van ((cac xuc) or (cam xuc)) ((va thanh) OR (gia thanh)) lam cua viet".
• Adding a wildcard symbol may retrieve word variants: toc sach ky nang xa hoi. thi van ((cac xuc) or (cam xuc)) ((va thanh) OR (gia thanh)) lam cua viet*.