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