Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
nang cong » nang song, dang cong, bang cong
tranh va » tranh van, trang va, trinh va
cong dan » cong san, cong tan, huong dan
phan cau » phan cac, phan tu, phan lap
phan dau » phan tu, hang dau
va nang » van nang, da nang, cam nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc thieu xanh - canh tranh va nang cong dan ((phan cau) OR (phan dau))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc thieu xanh - canh tranh va nang cong dan ((phan cau) OR (phan dau))".
• Adding a wildcard symbol may retrieve word variants: toc thieu xanh - canh tranh va nang cong dan ((phan cau) OR (phan dau))*.