Perhaps you should try some spelling variations:
bach tuoc » sach duoc, sach nuoc
bieu vien » bieu hien, bieu dien, dieu kien
cua triet » cua viet, su triet, va triet
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, nang ma, mang xa
lang xa » lang ha, dang xay, lang van
tuoc va » thuoc va, nuoc va, duoc va
danh du » danh dau, dinh du, anh du
danh tu » anh tu, doanh thu

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 (lang xa)) hoi. bieu vien bach tuoc va ((danh du) or (danh tu)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky ((nang xa) OR (lang xa)) hoi. bieu vien bach tuoc va ((danh du) OR (danh tu)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky ((nang xa) OR (lang xa)) hoi. bieu vien bach tuoc va ((danh du) or (danh tu)) cua triet".
• Adding a wildcard symbol may retrieve word variants: su sach ky ((nang xa) OR (lang xa)) hoi. bieu vien bach tuoc va ((danh du) or (danh tu)) cua triet*.