Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
thuat mach » thuat sach, thuat tach, thuyet mach
trinh quan » tinh quang, trinh luat, trinh han
quan nhung » qua nhung, cua nhung, luan chung
nhung cong » dung cong, thong cong, hang cong
thuat tai » thuat bai, thuat tao, thuat cai
san van » luan van, tran van, dang van
tan van » tran van, tang van, luan van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((thuat mach) or (thuat tai)) - hanh trinh quan nhung cong ((san van) or (tan van)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((thuat mach) OR (thuat tai)) - hanh trinh quan nhung cong ((san van) OR (tan van)) ban.
• Adding a wildcard symbol may retrieve word variants: ho ((thuat mach) or (thuat tai)) - hanh trinh quan nhung cong ((san van) or (tan van)) ban*.