Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh luong » hang luong, thanh huong, thanh cuong
hoc thieu » toc thieu, hoc hien
cong pham » cong phan, chong phap, cong ha
pham toan » pham tuan, pham tan, phap toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu xanh - hanh luong ((quan trong) OR (gian trong)) cong pham toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh luong ((quan trong) OR (gian trong)) cong pham toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh luong ((quan trong) OR (gian trong)) cong pham toan cau*.