Perhaps you should try some spelling variations:
thanh sinh » thanh binh, thanh tinh, thanh vinh
sinh cua » manh cua, dinh cuu, sinh va
va thanh » gia thanh, ban thanh, va tinh
dang xay » dang van, van xay
tu sach » thu sach, te sach, tu cach
cao suc » cao su, cao duc
hieu ve » hieu va, hieu van
xay hoi » xa hoi, tay hoi, cay phoi
ky dang » ky nang, ky danh
su sach » so sach, vu sach
cua tre » cua te, cuu tre, cua triet

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) or (su sach)) ky dang xay hoi. hieu ve ((cao suc) or (giao duc)) va thanh sinh cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (su sach)) ky dang xay hoi. hieu ve ((cao suc) OR (giao duc)) va thanh sinh cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (su sach)) ky dang xay hoi. hieu ve ((cao suc) or (giao duc)) va thanh sinh cua tre*.