Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van tuan » van quan, van ban, anh tuan
tuan xuc » quang xuc, tuan khuc, toan xac
dinh dai » dinh dat, sinh dai, dinh dao
su triet » su viet, su tien, ve triet
te sach » toc sach
ty nang » ty xang, ty hang, ly nang
va dinh » van dinh, va kinh, va tinh
xuc va » duc va, tuc va, luc va
dai su » dai sua, dai so, dan su

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 ((ty nang) or (ky nang)) xa hoi. hieu van tuan xuc va dinh dai su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty nang) OR (ky nang)) xa hoi. hieu van tuan xuc va dinh dai su triet.
• Adding a wildcard symbol may retrieve word variants: te sach ((ty nang) or (ky nang)) xa hoi. hieu van tuan xuc va dinh dai su triet*.