Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
lanh bang » lanh sang, can bang, lap bang
anh bang » anh hoang, anh quang, tinh bang
va thong » va thuong, va phuong, he thong
cong bai » cuong bai, cong hai, cung bai
bai toan » bai tap
toan ban » van ban
doi chi » doi khi

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 (doi chi)) xanh - ((lanh bang) or (anh bang)) va thong cong bai toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (doi chi)) xanh - ((lanh bang) OR (anh bang)) va thong cong bai toan ban.
• Adding a wildcard symbol may retrieve word variants: ((hoc thieu) or (doi chi)) xanh - ((lanh bang) or (anh bang)) va thong cong bai toan ban*.