Perhaps you should try some spelling variations:
sach nganh » sach ngan, sach tranh, sach danh
vao truyen » va truyen, dao truyen, lao truyen
cac nganh » hoc nganh
hoc nhanh » hoc nganh, hoc phan
che thong » he thong, nghe thong, theo thong
cong che » cong cho, cong chi, cong chu
tin vao » tin va, tien van

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu ((((sach nganh) or (cac nganh))) or (hoc nhanh)) cong che thong tin vao truyen thong~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu ((((sach nganh) OR (cac nganh))) OR (hoc nhanh)) cong che thong tin vao truyen thong.
• Adding a wildcard symbol may retrieve word variants: thu ((((sach nganh) or (cac nganh))) or (hoc nhanh)) cong che thong tin vao truyen thong*.