Perhaps you should try some spelling variations:
hien bich » phien dich, chien dich, mien dich
hieu hien » bieu hien, dieu hien, chieu chien
bich ngoc » bich nga, dinh ngoc
danh vi » dinh vi, danh di, danh va
ngoc va » nuoc va, ngoc ha, goc va
sach ty » sach y, sach thu, xach tay
sach tu » sach thu, cach tu, sach uu
cua cu » cua chu, cua cau, cua su
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: bo ((sach ty) OR (sach tu)) nang x hoi. hieu hien bich ngoc va ((danh vi) or (hanh vi)) cua cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: bo ((sach ty) OR (sach tu)) nang x hoi. hieu hien bich ngoc va ((danh vi) OR (hanh vi)) cua cu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "bo ((sach ty) OR (sach tu)) nang x hoi. hieu hien bich ngoc va ((danh vi) or (hanh vi)) cua cu*".