Perhaps you should try some spelling variations:
lang chai » lang ha, lang cua, lang phi
hieu van » hieu va, thien van, lieu va
lanh hai » manh hai, thanh hai, lanh dao
tu sach » thu sach, su sach, te sach
anh hai » manh hai, anh thai, anh bai
sach ky » sac ky, sach y, sach ty
cuc ban » cua ban, cac ban, cuu ban
cam cuc » cam xuc, cham cuu, pham cuc
van cam » van nam, van lam, van cau
nang xa » nang x, lang xa, nang ma
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) OR (lang chai)))) 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) OR (lang chai)))) cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang xa hoi. hieu van cam cuc ban ((anh hai) or (((lanh hai) OR (lang chai)))) 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) OR (lang chai)))) cua tre*.