Perhaps you should try some spelling variations:
thanh tua » thanh tuan, thanh tra, thanh tu
tua chua » sua chua, cua chua, ta chua
va thanh » gia thanh, ban thanh, va tinh
cham loc » cham soc, chon loc, cham o
hieu vu » hieu va, hieu ve, hieu su
vu cham » va cham, vu kham, tu cham
su sach » vu sach
ly nang » ky nang, ly hang, ly vang
so sach » so sanh, bo sach, co sach
chua te » cua te, chua tu, chua xe
loc va » hoc va, luc va
y nang » ky nang, v nang, may nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) OR (so sach)) ((y nang) or (ly nang)) xa hoi. hieu vu cham loc va thanh tua chua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ((y nang) OR (ly nang)) xa hoi. hieu vu cham loc va thanh tua chua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) ((y nang) or (ly nang)) xa hoi. hieu vu cham loc va thanh tua chua te".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (so sach)) ((y nang) or (ly nang)) xa hoi. hieu vu cham loc va thanh tua chua te*.