Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
anh trong » anh thuong, dinh trong, lang trong
anh tong » anh thong, anh dong, anh cong
luan han » luan hoan, luan phan, luan van
han nong » hang nong, han tong, phan cong
nong dan » cong dan, nong san, nguong dan
dan toan » van toan, dan than, manh toan
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: theo tieu xanh - ((anh tong) OR (anh trong)) luan han nong dan toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - ((anh tong) OR (anh trong)) luan han nong dan toan cao".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - ((anh tong) OR (anh trong)) luan han nong dan toan cao*.