Perhaps you should try some spelling variations:
bang cong » dang cong, bang song, hang cong
manh toan » thanh toan, anh tuan, tinh toan
dieu dan » dieu danh, dien dan, dieu can
vien dai » hien dai
chinh va » chinh ta, chinh tai, hanh va
dan chan » dan gian, dan ca, van chat
va bang » va nang, va lang, va ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((dieu dan) or (vien dai)) - hanh chinh va bang cong ((manh toan) or (dan chan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((dieu dan) OR (vien dai)) - hanh chinh va bang cong ((manh toan) OR (dan chan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((dieu dan) or (vien dai)) - hanh chinh va bang cong ((manh toan) or (dan chan)) cau*.