Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
van nhan » van phan, van thanh, danh nhan
vien cua » viec cua, dien cua, tien cua
sach ky » sac ky, sach y, sach ty
hieu ve » hieu va, hieu van
va nhan » ca nhan, va phan, va nha
ve cao » va cao, ve bao, ve cac
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: thuat sach ky nang x hoi. hieu ve cao su ((va nhan) or (van nhan)) vien cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ky nang x hoi. hieu ve cao su ((va nhan) OR (van nhan)) vien cua te.
• Adding a wildcard symbol may retrieve word variants: thuat sach ky nang x hoi. hieu ve cao su ((va nhan) or (van nhan)) vien cua te*.