Perhaps you should try some spelling variations:
trinh luan » trinh luat, trinh quan, trinh han
tranh luan » trinh luat, doanh luan, tang luan
lieu tinh » trieu tinh, diep tinh, bien tinh
cong dan » cong san, huong dan, cong dong
cong tan » cong tac, cong san, cong thanh
than tap » toan tap, han tap, phan tap
ho lieu » so lieu, co lieu, ho 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 lieu tinh - canh ((tranh luan) OR (trinh luan)) phong ((cong dan) or (cong tan)) than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - canh ((tranh luan) OR (trinh luan)) phong ((cong dan) OR (cong tan)) than tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho lieu tinh - canh ((tranh luan) OR (trinh luan)) phong ((cong dan) or (cong tan)) than tap".
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - canh ((tranh luan) OR (trinh luan)) phong ((cong dan) or (cong tan)) than tap*.