Perhaps you should try some spelling variations:
khien bang » phien ban, khien dong, khien vong
quang luan » quan luan, quang tuan, quang uan
trong hach » trong mach, trong cach, trong hanh
hoc khien » hoc hien, hoc nghien, hoc thieu
luan dung » lan dung, luan dong, luan hung
hach toan » thanh toan, manh toan
toan ban » van 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 khien bang - nhanh quang luan dung trong hach toan ban~.
• Adding a wildcard symbol may retrieve word variants: hoc khien bang - nhanh quang luan dung trong hach toan ban*.