Perhaps you should try some spelling variations:
vien nganh » vien thanh
hanh trinh » canh tranh, hanh chinh
trinh vat » trinh van, trinh luat, sinh vat
lang cong » dang cong, bang cong, hang cong
hoc vien » hoc hien, hoc viet, hoc tieng
vat lang » va lang, van lang, vat mang
cong van » cong vang, cong san, song van
tuan tai » quan tai, tan tai, tuan tuoi
toan tai » toan tap, doanh tai, toan ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc vien nganh - hanh trinh vat lang cong van ((tuan tai) OR (toan tai))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc vien nganh - hanh trinh vat lang cong van ((tuan tai) OR (toan tai))*".