Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, nghiep nganh
nhung cong » dung cong, thong cong, hang cong
hieu manh » chieu xanh, dieu hanh, hien hanh
cong lang » cong vang, cong luong, cong quang
lang toan » dang toan, lang thang, lang thanh
chinh ve » chinh va, chinh vi, chinh ke
ve nhung » va nhung, tu nhung
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: hoc ((hieu manh) OR (hieu nganh)) - hanh chinh ve nhung cong lang toan cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hieu manh) OR (hieu nganh)) - hanh chinh ve nhung cong lang toan cau*".