Perhaps you should try some spelling variations:
dinh dien » tinh dien, kinh dien, dich dien
danh dien » danh kien, danh lien, nganh dien
toc sach » hoc sach, doc sach, thuoc sach
lam duc » lam duoc, pham duc, nam duoc
nang o » nang co, nang ho, nang ro
va lam » van lam, va lap
cua te » cua tu
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: ((toc sach) or (thu hoach)) ky nang o hoi. lieu va lam duc va ((danh dien) OR (dinh dien)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc sach) OR (thu hoach)) ky nang o hoi. lieu va lam duc va ((danh dien) OR (dinh dien)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc sach) or (thu hoach)) ky nang o hoi. lieu va lam duc va ((danh dien) OR (dinh dien)) cua te".
• Adding a wildcard symbol may retrieve word variants: ((toc sach) or (thu hoach)) ky nang o hoi. lieu va lam duc va ((danh dien) OR (dinh dien)) cua te*.