Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
so sach » so sanh, bo sach, co sach
nang xa » lang xa, nang ma, mang xa
hieu ve » hieu va, hieu van
cam tuc » cam xuc, cam tu, nam thuc
va hang » van hang, va nang, va lang
hang de » hoang de, hanh de, hang di
tu sach » thu sach, su sach, te sach
ve cam » ve cham, ve cac, va cam
tuc va » thuc va, truc va, tuc xa
de va » de van, te va, ke va

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