Perhaps you should try some spelling variations:
hieu hieu » hien hieu, hieu hien, thien hieu
hieu cac » hieu luc, hieu va, hieu van
danh bat » doanh bat, anh bai, dinh ba
su sach » so sach, vu sach
bat cua » ban cua, mat cua, bai cua
cua tre » cua te, cuu tre, cua triet
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
so va » so van, so vat, su va
do va » do van
bo va » bao va, co va, mo 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 ky nang xa hoi. hieu hieu cac ((((bo va) or (so va))) or (do va)) danh bat cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang xa hoi. hieu hieu cac ((((bo va) OR (so va))) OR (do va)) danh bat cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. hieu hieu cac ((((bo va) or (so va))) or (do va)) danh bat cua tre*.