Perhaps you should try some spelling variations:
nhanh chong » thanh cong, khanh phong
quan thanh » ban thanh, van thanh
thanh van » thanh san, thanh toan, thanh phan
coc nhanh » hoc nhanh, doc nhanh, cach nhanh
chong hoc » chung hoc, chong doc, thong hoc
hai quan » tac quan
cong coc » cong cuoc, cong cac, cong co
cuu cong » cua cong, thu cong, cac cong
toc sach » hoc sach, doc sach, thuoc sach
doi tap » doi tac, doi dap, doi 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) or (toc sach)) doi tap, nghien cuu cong coc nhanh chong hoc xa hai quan thanh van~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) doi tap, nghien cuu cong coc nhanh chong hoc xa hai quan thanh van.
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (toc sach)) doi tap, nghien cuu cong coc nhanh chong hoc xa hai quan thanh van*.