Perhaps you should try some spelling variations:
phuong cong » phuong dong, phong cong, phung cong
hanh hang » thanh hang, hang hang, hanh mang
va phuong » va thuong, cac phuong
hanh han » hanh nhan, hanh phan, hanh san
cong san » cong tac
ho chiu » ho chieu, hoi chiu, ho chi
san van » tan van, luan van, tran 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 chiu trach - ((hanh hang) OR (hanh han)) va phuong cong san van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chiu trach - ((hanh hang) OR (hanh han)) va phuong cong san van ban".
• Adding a wildcard symbol may retrieve word variants: ho chiu trach - ((hanh hang) OR (hanh han)) va phuong cong san van ban*.