Perhaps you should try some spelling variations:
chat tuc » chat xuc, luat tuc, chat huu
va chat » van chat, va phat, cao chat
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
sach ty » sach tu, sach thu, xach tay
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
su viet » so viet
vi su » va su, ve su, ki su

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

• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ty) OR (sach y)) nang xa hoi. hieu va chat tuc ((va hanh) OR (va danh)) vi su viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ty) or (sach y)) nang xa hoi. hieu va chat tuc ((va hanh) OR (va danh)) vi su viet~".
• Adding a wildcard symbol may retrieve word variants: su ((sach ty) or (sach y)) nang xa hoi. hieu va chat tuc ((va hanh) OR (va danh)) vi su viet*.