Perhaps you should try some spelling variations:
thanh rung » thanh trung, thanh tung, thanh hung
hoc thieu » hoc hien
rung khoa » trung khoa, dung khoa, truong khoa
khoa dung » hoc dung, khoa cong
trong tac » trong cac, tuong tac, trong tan
tac hang » tac vang, bac thang, tac chong
hang cau » hang dau, hang ca, nhung cau

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 (toc thieu)) xanh - thanh rung khoa dung trong tac hang cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) xanh - thanh rung khoa dung trong tac hang cau*.