Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
chieu sang » chieu sach, chieu xanh, hieu lang
nhung cong » dung cong, thong cong, hang cong
trinh vat » trinh van, trinh luat, sinh vat
vat nhung » va nhung, vap nhung, vai nhung
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cao » toan ban, toan tap
ha tinh » va tinh, may tinh

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((((chieu sang) OR (chinh sach))) OR (ha tinh)) - hanh trinh vat nhung cong tan toan cao~.
• Adding a wildcard symbol may retrieve word variants: ho ((((chieu sang) or (chinh sach))) or (ha tinh)) - hanh trinh vat nhung cong tan toan cao*.