Perhaps you should try some spelling variations:
hieu xanh » chieu xanh, hieu manh, hieu nganh
hang cong » dang cong, bang cong, thong cong
hang nong » thang long, han tong
doc hieu » toc thieu, hoc thieu, hoc hien
cong va » dong va, cong ha, cong tac
phat tu » phan tu, phap tu, nhat tu
pham tu » phan tu, pham thi, pham tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu xanh - thanh cong va ((hang cong) or (hang nong)) nang ((phat tu) or (pham tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doc hieu xanh - thanh cong va ((hang cong) OR (hang nong)) nang ((phat tu) OR (pham tu)).
• Adding a wildcard symbol may retrieve word variants: doc hieu xanh - thanh cong va ((hang cong) or (hang nong)) nang ((phat tu) or (pham tu))*.