Perhaps you should try some spelling variations:
hanh tung » thanh tung, manh tung, hanh dung
cong cong » trong cong, dung cong, dang cong
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
anh nang » ganh nang, anh bang, anh dang
tac toan » tap toan, tam toan, hach 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: theo chu xanh - ((hanh tung) or (anh nang)) cua ((cong cong) OR (cong dong)) tac toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu xanh - ((hanh tung) OR (anh nang)) cua ((cong cong) OR (cong dong)) tac toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu xanh - ((hanh tung) or (anh nang)) cua ((cong cong) OR (cong dong)) tac toan cau".
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - ((hanh tung) or (anh nang)) cua ((cong cong) OR (cong dong)) tac toan cau*.