Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
dung cong » dung trong
trinh tu » trinh ky
trinh do » trinh ky
cong dan » cong san, cong tan, huong dan
than cap » khan cap, thanh lap, thanh cac
phan cau » phan dau, phan cac, phan tu

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 ((trinh tu) OR (trinh do)) dung cong dan ((than cap) or (phan cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc thieu xanh - canh ((trinh tu) OR (trinh do)) dung cong dan ((than cap) OR (phan cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc thieu xanh - canh ((trinh tu) OR (trinh do)) dung cong dan ((than cap) or (phan cau))".
• Adding a wildcard symbol may retrieve word variants: toc thieu xanh - canh ((trinh tu) OR (trinh do)) dung cong dan ((than cap) or (phan cau))*.