Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
sach thue » sach thieu, sach tham, cach thuc
sach thu » sach thieu, sach tham, cach thuc
danh hai » dang hai, lanh hai, manh hai
hieu van » hieu va, thien van, lieu va
hai cua » thai cua, dai cua, hoi cua
va danh » va dinh, va dan, va hanh
nang xa » nang x, lang xa, nang ma
ha xuc » hoa xuc, chat xuc
ha duc » ho duc, ha dac, xa duc

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach thu) OR (sach thue)) nang xa hoi. hieu van ((ha xuc) or (ha duc)) va danh hai cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach thu) OR (sach thue)) nang xa hoi. hieu van ((ha xuc) OR (ha duc)) va danh hai cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach thu) OR (sach thue)) nang xa hoi. hieu van ((ha xuc) or (ha duc)) va danh hai cua triet".
• Adding a wildcard symbol may retrieve word variants: tu ((sach thu) OR (sach thue)) nang xa hoi. hieu van ((ha xuc) or (ha duc)) va danh hai cua triet*.