Perhaps you should try some spelling variations:
bieu hien » dieu hien, dieu khien, bien phien
bach tuoc » sach duoc, sach nuoc
hieu hien » dieu hien, chieu chien, dieu khien
va triet » va thiet, va trien, ve triet
danh tu » anh tu, doanh thu
va danh » va dinh, va dan, va hanh
tuoc va » thuoc va, nuoc va, duoc va
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » lang xa, nang ma, mang 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 ky ((nang xa) or (nang x)) hoi. ((hieu hien) OR (bieu hien)) bach tuoc va danh tu va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky ((nang xa) OR (nang x)) hoi. ((hieu hien) OR (bieu hien)) bach tuoc va danh tu va triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky ((nang xa) or (nang x)) hoi. ((hieu hien) OR (bieu hien)) bach tuoc va danh tu va triet*".