Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
cham vao » cham va, pham van, chat va
va thanh » ban thanh, va tinh, le thanh
vai cua » dai cua, hai cua, lai cua
hieu ve » hieu va, hieu van
hieu vu » hieu va, hieu su, dieu vu
nang co » nang cao, nang doc, nang noi
y nang » ky nang, ly nang, v nang
co hoi » co hoc, co loi
cua te » cua tu

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

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