Perhaps you should try some spelling variations:
tranh van » trinh van, thanh van, tranh ban
nang cong » nang song, dang cong, bang cong
tran van » luan van
cong dan » cong san, cong tan, huong dan
dan khan » dan khanh, dan chan, dan than
khan cap » khan ap, than cap, khoan cam
ha tinh » va tinh, may tinh

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

• Performing a fuzzy search may retrieve terms with similar spellings: pho ha tinh - canh ((tranh van) OR (tran van)) nang cong dan khan cap~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "pho ha tinh - canh ((tranh van) OR (tran van)) nang cong dan khan cap".
• Adding a wildcard symbol may retrieve word variants: pho ha tinh - canh ((tranh van) OR (tran van)) nang cong dan khan cap*.