Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
bo benh » so benh, o benh, co benh
ba benh » va benh, bach benh, tai benh
cau xuc » cam xuc, cau luc, cau truc
van cau » van dau, van hau, van chat
sach ky » sac ky, sach ty, sach kem
nang xa » nang x, lang xa, nang ma
cua tre » cua te, cuu tre, cua triet
di cua » dai cua, doi cua, de cua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thu ((sach ky) or (sach y)) nang xa hoi. hieu van cau xuc ((ba benh) OR (bo benh)) di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach ky) OR (sach y)) nang xa hoi. hieu van cau xuc ((ba benh) OR (bo benh)) di cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((sach ky) or (sach y)) nang xa hoi. hieu van cau xuc ((ba benh) OR (bo benh)) di cua tre*".