Perhaps you should try some spelling variations:
ky trong » ly trong, ke trong, cay trong
hoat xuc » hoa xuc, chat xuc, hoa xua
vanh dai » van dai, vanh tai, lanh dao
su sach » so sach, vu sach
ky tang » ky dang, kho tang, tay tang
va vanh » va van, va danh, va hanh
xuc va » duc va, tuc va, luc va
cua te » cua tu
qua » quan

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 ((ky nang) or (((ky tang) OR (ky trong)))) xa hoi. hieu qua hoat xuc va vanh dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ky nang) OR (((ky tang) OR (ky trong)))) xa hoi. hieu qua hoat xuc va vanh dai cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ((ky nang) or (((ky tang) OR (ky trong)))) xa hoi. hieu qua hoat xuc va vanh dai cua te*".