Perhaps you should try some spelling variations:
danh dien » dinh dien, danh kien, danh lien
hieu van » hieu va, thien van, lieu va
su sach » so sach, vu sach
danh vi » hanh vi, dinh vi, danh di
cam tuc » cam xuc, cam tu, nam thuc
van cam » van nam, van lam, van cau
sach ty » sach y, sach tu, sach thu
nang xa » lang xa, nang ma, mang xa
cua tre » cua te, cuu tre, cua triet
tuc va » thuc va, truc va, tuc xa

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 ty ((nang xa) OR (nang x)) hoi. hieu van cam tuc va ((danh vi) or (danh dien)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty ((nang xa) OR (nang x)) hoi. hieu van cam tuc va ((danh vi) OR (danh dien)) cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty ((nang xa) OR (nang x)) hoi. hieu van cam tuc va ((danh vi) or (danh dien)) cua tre*".