Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
thuat mach » thuat sach, thuat tach, thuyet mach
nhung song » nhung cong, nhung bong, nhung chong
thuat tac » thuat tach, thuat tao, thuat tai
trinh qua » trinh quan, trinh cua, trinh quang
qua nhung » quan nhung, cua nhung, qua chung
song van » hoang van, trong van, duong van
van van » tan van, san van, van vat

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 tac)) - hanh trinh qua nhung song van van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((thuat mach) OR (thuat tac)) - hanh trinh qua nhung song van van ban.
• Adding a wildcard symbol may retrieve word variants: ho ((thuat mach) or (thuat tac)) - hanh trinh qua nhung song van van ban*.