Perhaps you should try some spelling variations:
luan thuc » dan thuc, nhan thuc, toan thuc
thanh vi » hanh vi, thanh va, thanh ve
lua truc » xuan truc, tu truc, ba truc
te sach » toc sach
sach ky » sac ky, sach y, sach ty
ky tang » ky nang, ky dang, kho tang
tang xa » trang xa, tang ma, lang xa
va cham » va chat, va tham
xac va » tac va, ac va, bac va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky tang xa hoi. lieu va cham ((xac va) or (duc va)) thanh vi ((lua truc) OR (luan thuc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky tang xa hoi. lieu va cham ((xac va) OR (duc va)) thanh vi ((lua truc) OR (luan thuc)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky tang xa hoi. lieu va cham ((xac va) or (duc va)) thanh vi ((lua truc) OR (luan thuc))".
• Adding a wildcard symbol may retrieve word variants: te sach ky tang xa hoi. lieu va cham ((xac va) or (duc va)) thanh vi ((lua truc) OR (luan thuc))*.