Perhaps you should try some spelling variations:
cach thuoc » cach thuc, cay thuoc, cach thoi
nghien cua » nghien cuu, nghiep cua, nghiep vua
nganh khoa » nganh hoa, nganh khong, doanh khoa
thuoc tai » nuoc tai, hoc tai, thuoc ma
hoc nganh » hoc nhanh
khoa hoc » hoa hoc
phan van » pham van, thanh van, luan van
tu cach » tu cac
mot hoc » mon hoc, mo hoc, mot goc
mai hoi » mai khoi, lai hoi, mai doi
dai hoi » dai hoc, dai hai, dai moi
va phan » van phan, va phat, va phap

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 thuoc tai, nghien cua mot hoc nganh khoa hoc ((mai hoi) or (dai hoi)) va phan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cach thuoc tai, nghien cua mot hoc nganh khoa hoc ((mai hoi) OR (dai hoi)) va phan van.
• Adding a wildcard symbol may retrieve word variants: tu cach thuoc tai, nghien cua mot hoc nganh khoa hoc ((mai hoi) or (dai hoi)) va phan van*.