Perhaps you should try some spelling variations:
tinh dai » trinh dai, tinh da, tinh hai
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
hieu ve » hieu van
hieu va » lieu va, hieu qua
cau tuc » cau truc, cau tu, cau luc
va tinh » may tinh
cua tre » cua te, cuu tre, cua triet
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: tu sach ty nang xa hoi. ((hieu ve) or (hieu va)) cau tuc va tinh dai cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang xa hoi. ((hieu ve) OR (hieu va)) cau tuc va tinh dai cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang xa hoi. ((hieu ve) or (hieu va)) cau tuc va tinh dai cua tre*.