Perhaps you should try some spelling variations:
nhanh khong » nhanh chong, nganh khong, nhan khong
nghien cua » nghien cuu, nghiep cua, nghiep vua
goc nhanh » hoc nhanh, doc nhanh, goc nhan
khong hoc » khung hoc, thong hoc, khong thuoc
van nhan » van phan, van thanh, danh nhan
nhan van » nhan dan, nhan va, phan van
tu manh » tu minh, tu hanh, tung manh
vu manh » vu minh, vu anh, suc manh
hoi van » hoi va, hoi dan, hai van
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 manh) OR (vu manh)) hoc tap, nghien cua mot goc nhanh khong hoc ma hoi van nhan van~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu manh) OR (vu manh)) hoc tap, nghien cua mot goc nhanh khong hoc ma hoi van nhan van".
• Adding a wildcard symbol may retrieve word variants: ((tu manh) OR (vu manh)) hoc tap, nghien cua mot goc nhanh khong hoc ma hoi van nhan van*.