Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
chat luoc » chat luong, chat hoc, chat xuc
luoc gia » quoc gia, luc gia, luong gia
su sach » vu sach
hieu va » lieu va, hieu qua
hieu ve » hieu van
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
so sach » so sanh, bo sach, co sach
cua tre » cua te, cuu tre, cua triet

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: ((su sach) OR (so sach)) ty nang xa hoi. ((hieu ve) OR (hieu va)) chat luoc gia thanh dai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (so sach)) ty nang xa hoi. ((hieu ve) OR (hieu va)) chat luoc gia thanh dai cua tre~".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sach)) ty nang xa hoi. ((hieu ve) OR (hieu va)) chat luoc gia thanh dai cua tre*.