Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
kinh ve » kinh te, dinh ve, minh ve
kinh vu » dinh vu, kinh va, minh vu
cam luc » cam xuc, cau luc
hieu ve » hieu va, hieu van
tu sach » thu sach, su sach, te sach
tu nang » tru nang, tu nong, tu lang
tu nano » truc nano
luc va » duc va, tuc va, loc va
ve cam » ve cham, ve cac, va cam
x hoi » xa hoi, o hoi, x ho

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