Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hieu xanh » chieu xanh, hieu manh, hieu nganh
hanh phan » thanh phan, anh phan, hanh han
cua thong » cua thuong, cua khong, cua tong
phan cua » nhan cua, than cua, phat cua
cong san » cong tac
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: cao hieu xanh - hanh phan cua thong cong san van ban~.
• Adding a wildcard symbol may retrieve word variants: cao hieu xanh - hanh phan cua thong cong san van ban*.