Perhaps you should try some spelling variations:
hoc sach » hoc sinh, hoc cac
nham thu » nham thuc, nam thu, pham thu
hoc anh » hoc nganh, hoc nhanh, ngoc anh
nang xa » nang x, lang xa, nang ma
va nham » va cham, va tham, va nha
va danh » va dinh, va dan, va hanh
thu va » thuc va, thue va, tu va
di cua » doi cua, de cua, do cua

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