Perhaps you should try some spelling variations:
bach dang » bach dan, bach khang, cach mang
bach van » bach dan, cach van, bach xuan
quang xa » quan xa, quang ma, quang va
cam quoc » cac quoc, cao quoc, nam quoc
quoc ban » quoc bao, quoc lan, quoc quan
ban hanh » ban hang
su triet » su viet, su tien, ve triet
hieu ve » hieu va, hieu van
hanh ki » hanh vi, hanh ky, hanh kien
ve cam » ve cham, ve cac, va cam
ki su » ky su

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

• Performing a fuzzy search may retrieve terms with similar spellings: huu ((bach van) or (bach dang)) quang xa hoi. hieu ve cam quoc ban hanh ki su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: huu ((bach van) OR (bach dang)) quang xa hoi. hieu ve cam quoc ban hanh ki su triet.
• Adding a wildcard symbol may retrieve word variants: huu ((bach van) or (bach dang)) quang xa hoi. hieu ve cam quoc ban hanh ki su triet*.