Perhaps you should try some spelling variations:
vien nganh » vien thanh
nhanh lang » nhanh quang, nhanh thang, nhan dang
hieu lang » chieu sang, hieu quang, nhieu tang
hanh mang » nhanh mang, hanh trang, thanh hang
dung cong » dung trong
cua dung » cua dang, cua dong, qua dung
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: theo ((vien nganh) or (hieu lang)) - ((hanh mang) OR (nhanh lang)) cua dung cong tan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((vien nganh) OR (hieu lang)) - ((hanh mang) OR (nhanh lang)) cua dung cong tan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((vien nganh) or (hieu lang)) - ((hanh mang) OR (nhanh lang)) cua dung cong tan toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((vien nganh) or (hieu lang)) - ((hanh mang) OR (nhanh lang)) cua dung cong tan toan cau*.