Perhaps you should try some spelling variations:
hanh khoa » hang khoa, anh khoa, hanh hoa
phan dang » phan dau, phan cong, nhan dan
thoi dai » hoc dai, hoi dap
hoc hanh » hoc nhanh, hoc thanh, hoc anh
khoa hoc » hoa hoc
van phan » van phong, van thanh, luan phan
te cach » ve cach, te sach, tu cach
hoi dan » hoa dan, hoc dan, hoi dap
cuu mot » cua mot, cuu mo, huu mot
mot hoc » mon hoc, mo hoc, mot goc
hoi van » hoi va, hai van, hoi han
hoc xa » hoc ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: te cach ((thoi dai) or (hoi dan)), nghien cuu mot hoc hanh khoa hoc xa hoi van phan dang~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te cach ((thoi dai) OR (hoi dan)), nghien cuu mot hoc hanh khoa hoc xa hoi van phan dang.
• Adding a wildcard symbol may retrieve word variants: te cach ((thoi dai) or (hoi dan)), nghien cuu mot hoc hanh khoa hoc xa hoi van phan dang*.