Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
huong cua » dung cua
truong ca » truong cao, truong va, truong dai
dung cong » dung trong
trong ca » trong cac, trong nha
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cau » 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 xanh - thanh ((huong cua) or (((truong ca) or (trong ca)))) dung cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh ((huong cua) OR (((truong ca) OR (trong ca)))) dung cong tan toan cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh ((huong cua) or (((truong ca) or (trong ca)))) dung cong tan toan cau*.