Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hang cua » mang cua, hang ca, huong cua
hanh cua » manh cua, hanh sua, doanh cua
sach ky » sac ky, sach y, sach ty
so sach » so sanh, bo sach, co sach
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
luc va » duc va, tuc va
loc va » hoc va
ve cam » ve cham, ve cac, va cam

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 hoi. hieu ve cam ((luc va) OR (loc va)) ((hanh cua) or (hang cua)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach ky nang xa hoi. hieu ve cam ((luc va) OR (loc va)) ((hanh cua) OR (hang cua)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ky nang xa hoi. hieu ve cam ((luc va) OR (loc va)) ((hanh cua) or (hang cua)) cua triet".
• Adding a wildcard symbol may retrieve word variants: so sach ky nang xa hoi. hieu ve cam ((luc va) OR (loc va)) ((hanh cua) or (hang cua)) cua triet*.