Perhaps you should try some spelling variations:
tranh luat » trinh luat, tranh luan, tranh cua
trinh luan » trinh luat, trinh quan, trinh han
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu
cong tac » cong ty
tac toan » tap toan, tam toan, hach 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: ((hoc thieu) or (hoc hien)) manh - canh ((tranh luat) OR (trinh luan)) thong cong tac toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (hoc hien)) manh - canh ((tranh luat) OR (trinh luan)) thong cong tac toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc thieu) or (hoc hien)) manh - canh ((tranh luat) OR (trinh luan)) thong cong tac toan ban".
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (hoc hien)) manh - canh ((tranh luat) OR (trinh luan)) thong cong tac toan ban*.