Perhaps you should try some spelling variations:
hieu nganh » vien nganh, nghiep nganh
hanh trinh » canh tranh, hanh chinh
luat thong » luat thuong, suat thong, xuat thong
thong cong » trong cong, tong cong, thong thong
hieu manh » chieu xanh, dieu hanh, hien hanh
hiem ngan » kim ngan, viem gan
cong tinh » cong trinh, cong vinh, long tinh
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 nganh) OR (hieu manh))) or (hiem ngan)) - hanh trinh luat thong cong tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((((hieu nganh) OR (hieu manh))) OR (hiem ngan)) - hanh trinh luat thong cong tinh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((((hieu nganh) OR (hieu manh))) or (hiem ngan)) - hanh trinh luat thong cong tinh toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((((hieu nganh) OR (hieu manh))) or (hiem ngan)) - hanh trinh luat thong cong tinh toan cau*.