Perhaps you should try some spelling variations:
quoc quan » qua quan, luc quan, hoc quan
chuc van » chu van, thuc van, chuc can
thanh ve » hanh ve, thanh va, thanh vien
quan ky » quan ly, quan y, xuan ky
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
chuc va » thuc va, thuc vat
cua tuc » cua duc, cua thuoc, luat tuc
ve cau » ke cau, va cau, ve cac
cua tu » cua su, cua cu, cua te

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

• Performing a fuzzy search may retrieve terms with similar spellings: quoc quan ky lang xa hoi. hieu ve cau ((chuc van) or (chuc va)) thanh ve ((cua tu) OR (cua tuc))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: quoc quan ky lang xa hoi. hieu ve cau ((chuc van) OR (chuc va)) thanh ve ((cua tu) OR (cua tuc)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "quoc quan ky lang xa hoi. hieu ve cau ((chuc van) or (chuc va)) thanh ve ((cua tu) OR (cua tuc))".
• Adding a wildcard symbol may retrieve word variants: quoc quan ky lang xa hoi. hieu ve cau ((chuc van) or (chuc va)) thanh ve ((cua tu) OR (cua tuc))*.