Perhaps you should try some spelling variations:
thanh gian » thanh giang, thach giang, thanh san
nganh hoa » khanh hoa, danh hoa, ninh hoa
thanh hoa » thanh pho
hai thanh » tai thanh, ha thanh, mai thanh
gian lang » gian dan
sach hoi » sach doi, sach moi, cach thoi
cuu dong » cuu cong, cuu tong, cuu long
te sach » toc sach
hoi tap » hoi dap, hoc tap, hoi tai
hoc xa » hoc ma
xa hai » xa thai, xua hai, xa hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach hoi tap, nghien cuu dong co ((nganh hoa) or (thanh hoa)) hoc xa hai thanh gian lang~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach hoi tap, nghien cuu dong co ((nganh hoa) OR (thanh hoa)) hoc xa hai thanh gian lang.
• Adding a wildcard symbol may retrieve word variants: te sach hoi tap, nghien cuu dong co ((nganh hoa) or (thanh hoa)) hoc xa hai thanh gian lang*.