Perhaps you should try some spelling variations:
sach kem » hanh kem
hieu van » hieu va, thien van, lieu va
nang xa » nang x, lang xa, nang ma
van cam » van nam, van lam, van cau
xuc van » luc van, vuc van, xuc ban
duc van » duc va, duc tan, duc manh
tuan di » tuan do, truan doi, quan doi
sac ky » cac ky, sai ky
di cua » dai cua, doi cua, de cua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach kem) OR (sac ky)) nang xa hoi. hieu van cam ((xuc van) OR (duc van)) tuan di cua vat~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach kem) or (sac ky)) nang xa hoi. hieu van cam ((xuc van) OR (duc van)) tuan di cua vat~".
• Adding a wildcard symbol may retrieve word variants: te ((sach kem) or (sac ky)) nang xa hoi. hieu van cam ((xuc van) OR (duc van)) tuan di cua vat*.