Perhaps you should try some spelling variations:
doanh bat » danh bat, doanh tai, doanh va
hoc sach » hoc sinh
thi nang » thi cong, ki nang, thi hanh
va doanh » van doanh, vay doanh, va danh
nang cac » nang cao, bang cac, hang cac
bat quan » ban quan, bao quan, hat quan
ky dang » ky nang, ky danh
dang ha » dong ha, dung ha, lang ha
hoc anh » hoc nganh, hoc nhanh, ngoc anh
cac toc » cac toi, cac nuoc, cac thoi
hoc cac » hoc cao
toc va » hoc va, toc ta, tuc va
ha hoi » hoa hoi, ha noi, 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: ((((hoc sach) OR (hoc cac))) or (hoc anh)) ky dang ha hoi. thi nang cac toc va doanh bat quan he~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((hoc sach) OR (hoc cac))) OR (hoc anh)) ky dang ha hoi. thi nang cac toc va doanh bat quan he*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((hoc sach) OR (hoc cac))) or (hoc anh)) ky dang ha hoi. thi nang cac toc va doanh bat quan he*".