Perhaps you should try some spelling variations:
hanh tang » hanh trang, hanh mang, hanh tung
dang cong » dung cong
chu tinh » chau tinh, chua tinh, cuu tinh
anh tang » anh bang, anh dang, anh nang
cua dang » cua cong, cua ban
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cau » toan cao, toan ban, toan tap
ho chu » hoi chu, cho chu, ho chua

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho chu tinh - ((hanh tang) OR (anh tang)) cua dang cong tac toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chu tinh - ((hanh tang) OR (anh tang)) cua dang cong tac toan cau".
• Adding a wildcard symbol may retrieve word variants: ho chu tinh - ((hanh tang) OR (anh tang)) cua dang cong tac toan cau*.