Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van chat » cao chat
chat duc » chat xuc, chat doc, chet duoc
van hanh » van thanh, ban hanh, van anh
hanh dai » hanh tai, hanh dao, vanh dai
vu sach » vu bach, su sach, vu khach
te sach » toc sach
nang ro » nang co, nang ho, nang ra
duc van » duc va, duc tan, duc manh
ro hoi » co hoi, o hoi, mo hoi
cua te » cua tu

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) or (te sach)) ky nang ro hoi. hieu van chat duc van hanh dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (te sach)) ky nang ro hoi. hieu van chat duc van hanh dai cua te.
• Adding a wildcard symbol may retrieve word variants: ((vu sach) or (te sach)) ky nang ro hoi. hieu van chat duc van hanh dai cua te*.