Perhaps you should try some spelling variations:
trong mach » trong cac, trong minh, trong anh
mach toan » manh toan, hach toan, mach tuan
chu manh » ho manh, chu van, thu minh
anh dung » anh dong, anh huong, sach dung
cho dung » cho dong, cao dung, chan dung
toan ban » van ban
chu han » chu van
cho ung » cho nhung, cho cong, cho hang

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

• Performing a fuzzy search may retrieve terms with similar spellings: chao ((chu manh) or (chu han)) - anh dung ((cho dung) or (cho ung)) trong mach toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: chao ((chu manh) OR (chu han)) - anh dung ((cho dung) OR (cho ung)) trong mach toan ban.
• Adding a wildcard symbol may retrieve word variants: chao ((chu manh) or (chu han)) - anh dung ((cho dung) or (cho ung)) trong mach toan ban*.