Perhaps you should try some spelling variations:
tu cach » tu cac
hieu ve » hieu va, hieu van
la tren » loai tren, dua tren, dat tren
su sach » so sach, vu sach
va dao » ca dao
ve cam » ve cham, ve cac, va cam
x hoi » xa hoi, o hoi, x ho
va do » va doc, va co, va de
vi la » vi lua, vi ha, gi la

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (su sach)) ky nang x hoi. hieu ve cam xuc ((va do) OR (va dao)) vi la tren~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cach) or (su sach)) ky nang x hoi. hieu ve cam xuc ((va do) OR (va dao)) vi la tren~".
• Adding a wildcard symbol may retrieve word variants: ((tu cach) or (su sach)) ky nang x hoi. hieu ve cam xuc ((va do) OR (va dao)) vi la tren*.