Perhaps you should try some spelling variations:
thanh vi » hanh vi, thanh va, thanh ve
luu truc » luu tru, cau truc, cuu thuc
te sach » toc sach
sach ky » sac ky, sach y, sach ty
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
va cham » va chat, va tham
xac va » tac va, bac va, mac va
vi luu » vi lua
ac va » tac va, bac va, mac 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 lang xa hoi. hieu va cham ((((xac va) OR (ac va))) or (duc va)) thanh vi luu truc~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky lang xa hoi. hieu va cham ((((xac va) OR (ac va))) OR (duc va)) thanh vi luu truc.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky lang xa hoi. hieu va cham ((((xac va) OR (ac va))) or (duc va)) thanh vi luu truc".
• Adding a wildcard symbol may retrieve word variants: te sach ky lang xa hoi. hieu va cham ((((xac va) OR (ac va))) or (duc va)) thanh vi luu truc*.