Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc anh
cham luc » cham soc, nhan luc, cham cuu
hoc cac » hoc cao
va nang » van nang, da nang, cam nang
nang xa » nang x, lang xa, nang ma
va cham » va chat, va tham
va danh » va dan, va hanh, dia danh
va dinh » van dinh, va kinh, va tinh
de cua » le cua, te cua, dieu cua
cua te » cua tu

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)) va nang xa hoi. lieu va cham luc ((va danh) or (va dinh)) de cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc sach) OR (hoc cac)) va nang xa hoi. lieu va cham luc ((va danh) OR (va dinh)) de cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc sach) OR (hoc cac)) va nang xa hoi. lieu va cham luc ((va danh) or (va dinh)) de cua te".
• Adding a wildcard symbol may retrieve word variants: ((hoc sach) OR (hoc cac)) va nang xa hoi. lieu va cham luc ((va danh) or (va dinh)) de cua te*.