Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
nam thuc » nam thuoc, am thuc, nam thu
cam tuc » cam xuc, cam tu, dam thuc
sach ky » sac ky, sach y, sach ty
va hanh » van hanh, va thanh, va danh
su sach » so sach, vu sach
va dan » ca dan, va dao, va dau
x hoi » xa hoi, o hoi, x ho
vi va » vi van, vai va, vu va

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 x hoi. lieu va ((cam tuc) OR (nam thuc)) ((va hanh) or (va dan)) vi va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang x hoi. lieu va ((cam tuc) OR (nam thuc)) ((va hanh) OR (va dan)) vi va triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang x hoi. lieu va ((cam tuc) OR (nam thuc)) ((va hanh) or (va dan)) vi va triet*".