Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
vai cua » hai cua, lai cua, bai cua
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
nang co » nang cao, nang doc, nang noi
y nang » ky nang, ly nang, v nang
cao va » cao van, tao va, co va
co loi » co hoi
vao va » vao vat, tao va, bao va

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 loi. hieu ve cham ((vao va) OR (cao va)) hanh ((vai cua) or (dai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach y nang co loi. hieu ve cham ((vao va) OR (cao va)) hanh ((vai cua) OR (dai cua)) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuoc sach y nang co loi. hieu ve cham ((vao va) OR (cao va)) hanh ((vai cua) or (dai cua)) tre*".