Perhaps you should try some spelling variations:
nhanh thong » nhanh chong, nhanh thang, nhan thong
quan trong » gian trong
tieu xanh » tieu danh, chieu xanh, dieu hanh
luan hoan » luan van
nong dan » cong dan, nong san, nguong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban

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 - nhanh thong ((luan hoan) or (quan trong)) nong dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - nhanh thong ((luan hoan) OR (quan trong)) nong dan toan ban*.