Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
hieu viec » nhieu viec, hieu ve, sieu viet
viec cac » vien cac, viec cua, viec lam
van hanh » van thanh, ban hanh, van anh
hanh dai » hanh tai, hanh dao, vanh dai
tu sach » thu sach, su sach, te sach
cac duc » cac du, cao duc, cac dac
duc van » duc va, duc tan, duc manh
y nang » ky nang, ly nang, v nang
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: ((tu sach) or (thuat sach)) y nang x hoi. hieu viec cac duc van hanh dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thuat sach)) y nang x hoi. hieu viec cac duc van hanh dai cua te.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thuat sach)) y nang x hoi. hieu viec cac duc van hanh dai cua te*.