Perhaps you should try some spelling variations:
nhanh chung » nhanh chuong, nhanh chong, nhanh hung
hanh huong » thanh huong, anh huong, manh huong
nghien cac » nghiep cach, nghien cuu, nghiep cay
huong tac » tuong tac, huong tam, muong tac
chung hoc » trung hoc, dung hoc, hung hoa
hang toan » hang ton, dang toan, hoang thoan
cac dong » cac duong, cac cong, cac dang
co nhanh » co thanh, co hanh, co phanh
tu hanh » du hanh, lu hanh, thuc hanh
hoi ban » hoi dan, hoi bai, hoc ban
doi ban » di ban, do ban, dong ban
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu hanh huong tac, nghien cac dong co nhanh chung hoc xa ((hoi ban) or (doi ban)) hang toan~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu hanh huong tac, nghien cac dong co nhanh chung hoc xa ((hoi ban) OR (doi ban)) hang toan.
• Adding a wildcard symbol may retrieve word variants: tu hanh huong tac, nghien cac dong co nhanh chung hoc xa ((hoi ban) or (doi ban)) hang toan*.