Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
hanh tai » thanh tai, hang tai, han tai
thuc dan » thuc hanh, hoc dan, thuc vat
sach ly » sach y, sach lo, sach ty
cua tre » cua te, cuu tre, cua triet
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
hang xa » hoang xa, hang va, hang ca
ly hang » ly quang
tuc va » thuc va, truc va, tuc xa
ve cam » ve cham, ve cac, va cam

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 ly hang xa hoi. hieu ve cam ((tuc va) or (thuc dan)) hanh tai ((cua tre) or (cua viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ly hang xa hoi. hieu ve cam ((tuc va) OR (thuc dan)) hanh tai ((cua tre) OR (cua viet)).
• Adding a wildcard symbol may retrieve word variants: su sach ly hang xa hoi. hieu ve cam ((tuc va) or (thuc dan)) hanh tai ((cua tre) or (cua viet))*.