Perhaps you should try some spelling variations:
luan nhung » luan chung, luan hung, luan phuong
hoc thuyet » hoc chuyen
quan nhung » qua nhung, cua nhung, luan chung
trinh quan » tinh quang, trinh luat, trinh han
hanh dung » thanh dung, anh dung, hanh dong
quan ban » quang ban, qua ban, quan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thuyet) or (hoc hien)) tach - hanh dung ((luan nhung) OR (quan nhung)) cong trinh quan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thuyet) OR (hoc hien)) tach - hanh dung ((luan nhung) OR (quan nhung)) cong trinh quan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thuyet) or (hoc hien)) tach - hanh dung ((luan nhung) OR (quan nhung)) cong trinh quan ban".
• Adding a wildcard symbol may retrieve word variants: ((hoc thuyet) or (hoc hien)) tach - hanh dung ((luan nhung) OR (quan nhung)) cong trinh quan ban*.