Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh hang » thanh hang, hanh han, hanh mang
hang hang » nang hang, cang thang, hung thang
cua nhung » va nhung
theo chu » theo chieu, cho chu, chao chu
chu xanh » chu manh, chieu xanh, chua xang
cong tac » cong ty
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 hang) OR (hang hang)) cua nhung cong tac toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu xanh - ((hanh hang) OR (hang hang)) cua nhung cong tac toan cau".
• Adding a wildcard symbol may retrieve word variants: theo chu xanh - ((hanh hang) OR (hang hang)) cua nhung cong tac toan cau*.