Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoc thiet » hoc thieu, hoc thuyet, hoc hien
hanh dung » thanh dung, anh dung, hanh dong
bang cong » dang cong, bang song, hang cong
ho chieu » theo chieu, hoc thieu, doi chieu
tap qua » tap quan, tap cua, giap qua
qua ban » cua ban, qua quan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (hoc thiet)) tach - hanh dung luan ((nhung cong) or (bang cong)) tap qua ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thiet)) tach - hanh dung luan ((nhung cong) OR (bang cong)) tap qua ban.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thiet)) tach - hanh dung luan ((nhung cong) or (bang cong)) tap qua ban*.