Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
danh sai » dung sai, danh bat, danh dau
su triet » su viet, su tien, ve triet
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
van cau » van dau, van hau, van chat
cau tuc » cau truc, cau tu, cau luc
va danh » va dinh, va dan, va hanh
tuc va » thuc va, truc va, tuc xa
cua tu » cua tuc, cua su, cua cu

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 nang xa hoi. hieu van cau tuc va danh sai ((su triet) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang xa hoi. hieu van cau tuc va danh sai ((su triet) OR (cua tu)).
• Adding a wildcard symbol may retrieve word variants: te sach ky nang xa hoi. hieu van cau tuc va danh sai ((su triet) or (cua tu))*.