Perhaps you should try some spelling variations:
lien duc » lien tuc, dien duc, tien duc
te sach » toc sach
qua hai » qua hoat
sach ky » sac ky, sach y, sach ty
nang ro » nang co, nang ho, nang ra
qua cua » quan cua, quang cua, qua quan
duc tre » duoc tren, duc tien
va dan » ca dan, va dao, va dap
va dau » va dao
ro hoi » co hoi, o hoi, mo hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky nang ro hoi. hieu ((qua cua) or (qua hai)) xuc ((va dan) OR (va dau)) lien duc tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang ro hoi. hieu ((qua cua) OR (qua hai)) xuc ((va dan) OR (va dau)) lien duc tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang ro hoi. hieu ((qua cua) or (qua hai)) xuc ((va dan) OR (va dau)) lien duc tre".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang ro hoi. hieu ((qua cua) or (qua hai)) xuc ((va dan) OR (va dau)) lien duc tre*.