Perhaps you should try some spelling variations:
quang dung » quang trung, ung dung, cuong dung
hanh trinh » canh tranh, hanh chinh
hoc chinh » hoan chinh, hoc sinh, hoc kinh
thong van » trong van, thong va, thong quan
qua dung » su dung, qua song, qua cong
bang cau » hang cau, bang cac, nang cao
ban cau » ban can, van cau, ban dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chinh sach - hanh trinh ((qua dung) or (quang dung)) thong van ((ban cau) OR (bang cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chinh sach - hanh trinh ((qua dung) OR (quang dung)) thong van ((ban cau) OR (bang cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chinh sach - hanh trinh ((qua dung) or (quang dung)) thong van ((ban cau) OR (bang cau))".
• Adding a wildcard symbol may retrieve word variants: hoc chinh sach - hanh trinh ((qua dung) or (quang dung)) thong van ((ban cau) OR (bang cau))*.