Perhaps you should try some spelling variations:
hieu nganh » vien nganh, hiem ngan, hieu manh
hanh trinh » canh tranh, hanh chinh
luat thong » luat thuong, suat thong, xuat thong
cong vang » cong lang, cong quang, cong ngang
toc hieu » toc thieu, doc hieu, hoc thieu
cong van » cong san, song van, cong tan
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: toc hieu nganh - hanh trinh luat thong ((cong van) OR (cong vang)) toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc hieu nganh - hanh trinh luat thong ((cong van) OR (cong vang)) toan cao".
• Adding a wildcard symbol may retrieve word variants: toc hieu nganh - hanh trinh luat thong ((cong van) OR (cong vang)) toan cao*.