Perhaps you should try some spelling variations:
nhan vat » nhan va, nhan tai, nhan dan
vat cuu » vat cua
da nhan » dac nhan, dam nhan, ca nhan
cac dai » cac dan, cac bai, can dai
sach ky » sach y, sach ty, sach kem
cac dac » cac dan, cac bac, cac tac
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
cuu tre » cua tre, cau tren, cau treo
sac ky » cac ky, sai ky

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 (sac ky)) lang xa hoi. hieu va ((cac dac) or (cac dai)) da nhan vat cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((sach ky) OR (sac ky)) lang xa hoi. hieu va ((cac dac) OR (cac dai)) da nhan vat cuu tre.
• Adding a wildcard symbol may retrieve word variants: thu ((sach ky) or (sac ky)) lang xa hoi. hieu va ((cac dac) or (cac dai)) da nhan vat cuu tre*.