Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
lanh hai » manh hai, thanh hai, lang chai
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
van cam » van nam, van lam, van cau
cam cuc » cam xuc, cham cuu, pham cuc
cuc ban » cua ban, cac ban, cuu ban
anh hai » manh hai, anh thai, anh bai
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 ky nang xa hoi. hieu van cam cuc ban ((anh hai) or (lanh hai)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang xa hoi. hieu van cam cuc ban ((anh hai) OR (lanh hai)) cua tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. hieu van cam cuc ban ((anh hai) or (lanh hai)) cua tre*.