Perhaps you should try some spelling variations:
hanh thai » nhanh thai, hinh thai, hanh tai
su triet » su viet, su tien, ve triet
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu va » lieu va
thai su » thai xu, tai su, thap su
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
luc va » tuc va, loc va

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: te sac ky lang xa hoi. ((hieu va) OR (hieu qua)) tham ((luc va) OR (duc va)) hanh thai su triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sac ky lang xa hoi. ((hieu va) OR (hieu qua)) tham ((luc va) or (duc va)) hanh thai su triet~".
• Adding a wildcard symbol may retrieve word variants: te sac ky lang xa hoi. ((hieu va) OR (hieu qua)) tham ((luc va) or (duc va)) hanh thai su triet*.