Perhaps you should try some spelling variations:
thanh bac » nhanh bac, thanh bai, thanh san
anh thanh » danh thanh, nhanh thanh, thanh thanh
hoc sach » hoc sinh, hoc cac, hoc anh
vu khach » vu khanh, vu khac, vay khach
so sach » so sanh, bo sach, co sach
ty nang » ky nang, ty xang, ty hang
nang ma » tang ma, sang ma, nang cao
bac cua » ban cua, tac cua, bai cua
ma hoi » mai hoi, xa hoi, ma hoa
hieu v » hieu va, hieu ve, hieu 2
v pham » vi pham, d pham

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((so sach) or (hoc sach))) or (vu khach)) ty nang ma hoi. hieu v pham duc anh thanh bac cua vat~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((so sach) OR (hoc sach))) OR (vu khach)) ty nang ma hoi. hieu v pham duc anh thanh bac cua vat.
• Adding a wildcard symbol may retrieve word variants: ((((so sach) or (hoc sach))) or (vu khach)) ty nang ma hoi. hieu v pham duc anh thanh bac cua vat*.