Perhaps you should try some spelling variations:
qua cham » qua hai, va cham, qua cua
dan lien » danh lien, van lien, dan vien
lien duc » lien tuc, dien duc, tien duc
te sach » toc sach
sach ky » sac ky, sach y, sach ty
qua cac » cua cac
duc tre » duoc tren, duc tien
nang o » nang co, nang ho, nang ro
soc va » hoc va, loc va, doc va
va dan » ca dan, va dao, va dau
o hoi » co hoi, o hoc, o hai

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 o hoi. hieu ((qua cham) OR (qua cac)) soc va dan lien duc tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang o hoi. hieu ((qua cham) OR (qua cac)) soc va dan lien duc tre".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang o hoi. hieu ((qua cham) OR (qua cac)) soc va dan lien duc tre*.