Perhaps you should try some spelling variations:
thanh vien » nhan vien, thanh van
thuc dan » thuc hanh, hoc dan, thuc vat
thanh ve » hanh ve, thanh va, thanh van
vu sach » vu bach, su sach, vu khach
na thuc » nam thuc, na thuoc, va thuc
hieu le » hieu ve, hieu he, hieu ly
y nang » ky nang, ly nang, may nang
v nang » va nang, vu nang, van nang
cua te » cua tu
le na » le nam, le va, le ta

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

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