Perhaps you should try some spelling variations:
tham nuoc » thay nuoc, thoat nuoc, nha nuoc
thu sach » tu sach, thuat sach, thuoc sach
van tuan » van quan, van ban, anh tuan
tham luc » than luc, tham thuc, nhan luc
va triet » va thiet, va trien, ve triet
hieu va » lieu va, hieu qua
nang xa » lang xa, nang ma, mang xa
tuan vi » quan vi, luan vi, quans vi
vi va » vi van, vai va, vu va

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y ((nang xa) OR (nang x)) hoi. hieu va ((tham luc) or (tham nuoc)) van tuan vi va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y ((nang xa) OR (nang x)) hoi. hieu va ((tham luc) OR (tham nuoc)) van tuan vi va triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y ((nang xa) OR (nang x)) hoi. hieu va ((tham luc) or (tham nuoc)) van tuan vi va triet".
• Adding a wildcard symbol may retrieve word variants: thu sach y ((nang xa) OR (nang x)) hoi. hieu va ((tham luc) or (tham nuoc)) van tuan vi va triet*.