Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
hieu van » hieu va, thien van, lieu va
van chat » cao chat
chat tuc » chat xuc, luat tuc, chat huu
va thanh » gia thanh, ban thanh, va tinh
cua viet » ca viet, hoa viet, cua vat
su triet » su viet, su tien, ve triet
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
y nang » ky nang, ly nang, v nang
tuc va » thuc va, truc va, tuc xa

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 y nang xa hoi. hieu van chat tuc va thanh dai ((cua viet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. hieu van chat tuc va thanh dai ((cua viet) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. hieu van chat tuc va thanh dai ((cua viet) or (su triet))*.