Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
su triet » su viet, su tien, ve triet
thanh vi » hanh vi, thanh va, thanh ve
nang doc » nang luc
xuc van » duc van, luc van, vuc van
su sach » so sach
doc hoi » duoc hoi, hoc hoi, doc hai
ty nang » ky nang, ty xang, ty hang
vu sach » vu bach, vu khach
ve cac » va cac, vien cac
ve cam » ve cham, va cam, ve cai
vi su » va su, ve su, ki su

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: ((su sach) OR (vu sach)) ty nang doc hoi. hieu ((ve cam) OR (ve cac)) xuc van thanh vi su triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (vu sach)) ty nang doc hoi. hieu ((ve cam) OR (ve cac)) xuc van thanh vi su triet~".
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (vu sach)) ty nang doc hoi. hieu ((ve cam) OR (ve cac)) xuc van thanh vi su triet*.