Perhaps you should try some spelling variations:
vat hanh » vat thanh, van hanh, va hanh
nang noi » nang doc
nha thuc » nhan thuc, nha thuoc, nham thuc
tu sach » thu sach, su sach, tu cach
doi cua » dai cua, hoi cua
hieu ve » hieu va, hieu van
noi hoi » noi doi, doi hoi, hoi hoi
te sach » toc sach
ve nha » ke nha
di cua » dai cua, de cua, do cua

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) or (te sach)) ky nang noi hoi. hieu ve nha thuc vat hanh ((di cua) or (doi cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ky nang noi hoi. hieu ve nha thuc vat hanh ((di cua) OR (doi cua)) te.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (te sach)) ky nang noi hoi. hieu ve nha thuc vat hanh ((di cua) or (doi cua)) te*.