Perhaps you should try some spelling variations:
nghien cua » nghien cuu, nghiep cua, nghiep vua
nganh khoa » nganh hoa, nganh khong, doanh khoa
hoc nganh » hoc nhanh
tu hoach » thu hoach, quy hoach, qui hoach
khoa hoc » hoa hoc
phan van » pham van, thanh van, luan van
tu hach » tu hanh, tu cach, tu sach
hoi tap » hoi dap, hoc tap, hoi tai
mot hoc » mon hoc, mo hoc, mot goc
va phan » van phan, va phat, va phap
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 hoach) or (tu hach)) hoi tap, nghien cua mot hoc nganh khoa hoc ma hoi va phan van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu hoach) OR (tu hach)) hoi tap, nghien cua mot hoc nganh khoa hoc ma hoi va phan van.
• Adding a wildcard symbol may retrieve word variants: ((tu hoach) or (tu hach)) hoi tap, nghien cua mot hoc nganh khoa hoc ma hoi va phan van*.