Perhaps you should try some spelling variations:
khong tong » khong trong, khong dong, khong mong
thieu xanh » chieu xanh, hieu manh, thien anh
lieu tinh » trieu tinh, diep tinh, bien tinh
lanh manh » lanh tranh, lan anh, van manh
cua khong » hua khong, cua phuong, cua thuong
manh cua » doanh cua, ban cua
tong tap » tuong tac, trong tan, cong tac
tap toan » tap doan, tap quan, bai 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: toc ((thieu xanh) or (lieu tinh)) - lanh manh cua khong tong tap toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc ((thieu xanh) OR (lieu tinh)) - lanh manh cua khong tong tap toan cao*.