Perhaps you should try some spelling variations:
bich ngoc » bich nga, dinh ngoc
hien bich » phien dich, chien dich, mien dich
hieu hien » bieu hien, dieu hien, chieu chien
danh di » danh du, xanh di, danh dien
danh vi » hanh vi, dinh vi, danh va
ngoc va » nuoc va, ngoc ha, goc va
co sach » cuon sach, hoc sach
nang xa » nang x, lang xa, nang ma
bo sach » hoc sach
cua tu » cua tuc, cua su, cua cu

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

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