Perhaps you should try some spelling variations:
cau trieu » cac trieu, cau triet, chua trieu
hanh va » hang va, hanh vi
sach ky » sac ky, sach y, sach ty
tu sach » thu sach, su sach, te sach
nang ma » tang ma, sang ma, nang cao
nang xa » nang x, lang xa, mang xa
luc va » duc va, tuc va, loc va
va cau » van cau, va cac, va dau
va cam » va cham, va cac, va cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky ((nang xa) OR (nang ma)) hoi. lieu va cam ((luc va) or (hoc va)) hanh va cau trieu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((nang xa) OR (nang ma)) hoi. lieu va cam ((luc va) OR (hoc va)) hanh va cau trieu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky ((nang xa) OR (nang ma)) hoi. lieu va cam ((luc va) or (hoc va)) hanh va cau trieu*".