Perhaps you should try some spelling variations:
nghien cau » nghien cuu, nghiep cau, nghiep cay
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
danh nhan » doanh nhan, thanh nhan, benh nhan
hut sinh » huy sinh, hut binh, thuat sinh
cau hoa » cau hoi
mai hoi » mai khoi, dai hoi, lai hoi
nhan va » nhan tai, nhan dan, nhan tao
ma hoi » xa hoi, ma hoa, me hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: hut sinh hoc tap, nghien cau hoa hoc nganh khoa hoc ((ma hoi) OR (mai hoi)) danh nhan va~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hut sinh hoc tap, nghien cau hoa hoc nganh khoa hoc ((ma hoi) OR (mai hoi)) danh nhan va".
• Adding a wildcard symbol may retrieve word variants: hut sinh hoc tap, nghien cau hoa hoc nganh khoa hoc ((ma hoi) OR (mai hoi)) danh nhan va*.