Perhaps you should try some spelling variations:
nghien cua » nghien cuu, nghiep cua, nghiep vua
nganh cong » nhanh chong, thanh cong
cach thoi » cac thoi, cach noi
cach thuc » anh thuc, cac thu
hoc nganh » hoc nhanh
cong hoc » dong hoc, cong hoa, cong coc
van nhan » van phan, van thanh, danh nhan
hoi van » hoi va, hoi dan, hai van
nhan va » nhan tai, nhan dan, nhan tao
ma hoi » mai hoi, xa hoi, ma hoa

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((cach thoi) OR (cach thuc)) tap, nghien cua cong hoc nganh cong hoc ma hoi van nhan va~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((cach thoi) OR (cach thuc)) tap, nghien cua cong hoc nganh cong hoc ma hoi van nhan va".
• Adding a wildcard symbol may retrieve word variants: tu ((cach thoi) OR (cach thuc)) tap, nghien cua cong hoc nganh cong hoc ma hoi van nhan va*.