Perhaps you should try some spelling variations:
theo chinh » thien chinh, te chinh, che chinh
hanh trinh » canh tranh, hanh chinh
trinh toan » tinh toan, thanh toan, trinh han
nhung don » nhung van, nhung bo
dung cong » dung trong
dan than » dan chan, ban than, van than
than cau » toan cau, phan cau, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo chinh sach - hanh trinh toan ((nhung don) or (dung cong)) dan than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chinh sach - hanh trinh toan ((nhung don) OR (dung cong)) dan than cau.
• Adding a wildcard symbol may retrieve word variants: theo chinh sach - hanh trinh toan ((nhung don) or (dung cong)) dan than cau*.