Perhaps you should try some spelling variations:
theo chinh » thien chinh, te chinh, che chinh
hanh nang » anh nang, ganh nang, hanh mang
quan dung » quang dung, quan duong, quan dong
duong van » luong va, dang van, trong van
qua dung » quang dung, su dung, qua song
duong va » dung va, luong va, dong va
tuan cao » toan cao, juan cao, quang cao

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 nang ((quan dung) or (qua dung)) ((duong va) OR (duong van)) tuan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chinh sach - hanh nang ((quan dung) OR (qua dung)) ((duong va) OR (duong van)) tuan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chinh sach - hanh nang ((quan dung) or (qua dung)) ((duong va) OR (duong van)) tuan cao".
• Adding a wildcard symbol may retrieve word variants: theo chinh sach - hanh nang ((quan dung) or (qua dung)) ((duong va) OR (duong van)) tuan cao*.