Perhaps you should try some spelling variations:
thue nang » thien nang, thuat nang, thi nang
toc sach » hoc sach, thuoc sach, nuoc sach
doc sach » hoc sach, nuoc sach, dac sac
van hanh » van thanh, ban hanh, van anh
cau luc » cau truc, cau phuc
hieu ve » hieu va, hieu van
cam luc » cam xuc
vi cua » vai cua, di cua
cua tu » cua tuc, cua su, cua cu
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc sach) OR (doc sach)) thue nang x hoi. hieu ve ((cam luc) or (cau luc)) van hanh vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (doc sach)) thue nang x hoi. hieu ve ((cam luc) OR (cau luc)) van hanh vi cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc sach) OR (doc sach)) thue nang x hoi. hieu ve ((cam luc) or (cau luc)) van hanh vi cua tu".
• Adding a wildcard symbol may retrieve word variants: ((toc sach) OR (doc sach)) thue nang x hoi. hieu ve ((cam luc) or (cau luc)) van hanh vi cua tu*.