Perhaps you should try some spelling variations:
sach kem » hanh kem
su triet » su viet, su tien, ve triet
hieu ve » hieu va, hieu van
cuu tre » cua tre, cau tren, cau treo
sac ky » cac ky, sai ky
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va
x hoi » xa hoi, o hoi, x ho

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 kem) or (sac ky)) nang x hoi. hieu ve cam xuc va van de ((cuu tre) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach kem) OR (sac ky)) nang x hoi. hieu ve cam xuc va van de ((cuu tre) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: tu ((sach kem) or (sac ky)) nang x hoi. hieu ve cam xuc va van de ((cuu tre) or (su triet))*.