Perhaps you should try some spelling variations:
hieu hien » dieu hien, chieu chien, dieu khien
bach nuoc » bach tuoc, sach nuoc, bich ngoc
bieu hien » dieu hien, dieu khien, bien phien
so sach » so sanh, bo sach, co sach
nang xa » lang xa, nang ma, mang xa
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
sach ky » sac ky, sach y, sach ty
vi cua » vai cua, di cua
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: so sach ky ((nang xa) OR (nang x)) hoi. ((hieu hien) or (bieu hien)) bach nuoc va danh vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky ((nang xa) OR (nang x)) hoi. ((hieu hien) OR (bieu hien)) bach nuoc va danh vi cua tu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky ((nang xa) OR (nang x)) hoi. ((hieu hien) or (bieu hien)) bach nuoc va danh vi cua tu*".