Perhaps you should try some spelling variations:
danh vai » danh va, doanh van, dang van
danh sai » dung sai, danh bat, danh dau
te sach » toc sach
sach ky » sac ky, sach y, sach ty
truc va » thuc va, trung va
va cau » van cau, va cac, va dau
cua te » cua tu
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky nang x hoi. lieu va cau ((truc va) or (thuc vat)) ((danh vai) OR (danh sai)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang x hoi. lieu va cau ((truc va) OR (thuc vat)) ((danh vai) OR (danh sai)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang x hoi. lieu va cau ((truc va) or (thuc vat)) ((danh vai) OR (danh sai)) cua te".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang x hoi. lieu va cau ((truc va) or (thuc vat)) ((danh vai) OR (danh sai)) cua te*.