Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
dan vai » dan tai, dan vat, den vai
hieu ve » hieu va, hieu van
tu sach » thu sach, su sach, te sach
ky lang » ky dang, ky tang, tay lang
cam tuc » cam xuc, cam tu, nam thuc
ve cam » ve cham, ve cac, va cam
tuc va » thuc va, truc va, tuc xa
dan va » doan va, dan ca, ban 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 ((ky lang) or (ky nang)) xa hoi. hieu ve cam tuc va ((dan vai) OR (dan va)) cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ((ky lang) OR (ky nang)) xa hoi. hieu ve cam tuc va ((dan vai) OR (dan va)) cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ((ky lang) or (ky nang)) xa hoi. hieu ve cam tuc va ((dan vai) OR (dan va)) cua triet".
• Adding a wildcard symbol may retrieve word variants: tu sach ((ky lang) or (ky nang)) xa hoi. hieu ve cam tuc va ((dan vai) OR (dan va)) cua triet*.