Perhaps you should try some spelling variations:
qua cham » qua hai, qua cac, va cham
dung doi » huong doi, dung tai, dung co
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
thuc va » thuc vat, thuc dan, thuc day
doi cua » dai cua, hoi cua, dong cua
cua tre » cua te, cuu tre, cua triet
y nang » ky nang, ly nang, v nang
tuc va » truc va, tuc xa, duc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach y nang xa hoi. hieu qua cham ((tuc va) or (thuc va)) dung doi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang xa hoi. hieu qua cham ((tuc va) OR (thuc va)) dung doi cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach y nang xa hoi. hieu qua cham ((tuc va) or (thuc va)) dung doi cua tre*.