Perhaps you should try some spelling variations:
cach thoi » cac thoi, cach thuc, cach noi
hoc thanh » hoc nhanh, hoan thanh, hoc phan
thanh hoa » thanh pho
thoi tap » toi tap, hoc tap, thoi dai
cuu cong » cua cong, thu cong, cac cong
dan phan » doan phan, dan chan, van phan
phan dau » phan tu, hang dau
vu cach » va cach, ve cach, vu bach
cuu mot » cua mot, cuu mo, huu mot
hoi dan » hoa dan, hoc dan, hoi dap
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: vu cach thoi tap, nghien ((cuu cong) or (cuu mot)) hoc thanh hoa hoc ma hoi dan phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu cach thoi tap, nghien ((cuu cong) OR (cuu mot)) hoc thanh hoa hoc ma hoi dan phan dau.
• Adding a wildcard symbol may retrieve word variants: vu cach thoi tap, nghien ((cuu cong) or (cuu mot)) hoc thanh hoa hoc ma hoi dan phan dau*.