Perhaps you should try some spelling variations:
tieu hanh » dieu hanh, tiem hanh, tien hanh
phan cong » thanh cong
anh mang » hanh mang, anh bang, anh dang
mang cua » manh cua, dung cua, ban cua
cua phan » cua nhan, cua phap, cua han
van vat » van chat, nhan vat
tan van » tran van, tang van, luan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu hanh - anh mang cua phan cong ((van vat) or (tan van)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu hanh - anh mang cua phan cong ((van vat) OR (tan van)) ban.
• Adding a wildcard symbol may retrieve word variants: theo tieu hanh - anh mang cua phan cong ((van vat) or (tan van)) ban*.