Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
thieu tinh » trieu tinh, chieu tinh, thien tinh
hoc thieu » toc thieu, hoc hien
lanh manh » lanh tranh, lan anh, van manh
dung cong » dung trong
manh cua » doanh cua, ban cua
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: hoc thieu tinh - lanh manh cua ((thong cong) or (dung cong)) dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - lanh manh cua ((thong cong) OR (dung cong)) dan toan cao.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - lanh manh cua ((thong cong) or (dung cong)) dan toan cao*.