Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc anh
thu nang » thi nang, thu hang, thu bang
nang cho » nang chon, ngang cho, nang cao
hoc cac » hoc cao
cho hoc » co hoc, khoa hoc
hieu ve » hieu va, hieu van
cac xuc » cam xuc, cac nuoc, chat xuc
xuc van » duc van, luc van, vuc van
duc cua » doc cua, luc cua, tuc cua
ve cac » va cac, vien cac

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)) thu nang cho hoc. hieu ve cac xuc van (minh or dinh) duc cua cac~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc sach) OR (hoc cac)) thu nang cho hoc. hieu ve cac xuc van (minh OR dinh) duc cua cac*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc sach) OR (hoc cac)) thu nang cho hoc. hieu ve cac xuc van (minh or dinh) duc cua cac*".