Perhaps you should try some spelling variations:
trinh luan » trinh luat, trinh quan, trinh toan
kieu tinh » lieu tinh, trieu tinh, diep tinh
trinh han » trinh quan
hang nong » thang long, han tong
dan toan » van toan, dan than, manh toan
toan ban » van ban
ho kieu » ho lieu, so kieu, thi kieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho kieu tinh - hanh ((trinh luan) or (trinh han)) ((hang nong) or (thong thong)) dan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho kieu tinh - hanh ((trinh luan) OR (trinh han)) ((hang nong) OR (thong thong)) dan toan ban.
• Adding a wildcard symbol may retrieve word variants: ho kieu tinh - hanh ((trinh luan) or (trinh han)) ((hang nong) or (thong thong)) dan toan ban*.