Perhaps you should try some spelling variations:
thanh mang » thanh hang, hanh mang, nhanh mang
khong cong » khong cang, chong cong, khong con
thong cong » trong cong, tong cong, thong thong
chuc danh » chuc nganh, thuc hanh, chuc nang
chua xang » chua nang, chuc nang, chu bang
vang toan » van toan, dang toan, quang toan
mang cua » manh cua, dung cua, ban cua
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 ((chuc danh) or (chua xang)) - thanh mang cua ((khong cong) OR (thong cong)) vang toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chuc danh) OR (chua xang)) - thanh mang cua ((khong cong) OR (thong cong)) vang toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chuc danh) or (chua xang)) - thanh mang cua ((khong cong) OR (thong cong)) vang toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chuc danh) or (chua xang)) - thanh mang cua ((khong cong) OR (thong cong)) vang toan cau*.