Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
tu sach » thu sach, su sach, te sach
y nang » ky nang, ly nang, v nang
ve cam » ve cham, va cam, ve cai
xuc va » duc va, tuc va, luc va
ve cac » va cac, vien cac
x hoi » xa hoi, o hoi, x ho
vi su » va su, ki su, oi su
ve su » va su

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 y nang x hoi. hieu ((ve cam) or (ve cac)) xuc va thanh ((vi su) or (ve su)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y nang x hoi. hieu ((ve cam) OR (ve cac)) xuc va thanh ((vi su) OR (ve su)) triet.
• Adding a wildcard symbol may retrieve word variants: tu sach y nang x hoi. hieu ((ve cam) or (ve cac)) xuc va thanh ((vi su) or (ve su)) triet*.