Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
phuc van » thuc van, phuc va, chuc van
cac phuc » cau phuc, khac phuc, cach thuc
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
quan ky » quan y, xuan ky, quan khu
hanh de » hanh ve, hanh kem
cuu tre » cua tre, cau tren, cau treo
ve cac » va cac, vien cac
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: nuoc ((quan ky) OR (quan ly)) nang xa hoi. hieu ve cac phuc van hanh de ((cua te) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nuoc ((quan ky) OR (quan ly)) nang xa hoi. hieu ve cac phuc van hanh de ((cua te) OR (cuu tre)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "nuoc ((quan ky) OR (quan ly)) nang xa hoi. hieu ve cac phuc van hanh de ((cua te) or (cuu tre))".
• Adding a wildcard symbol may retrieve word variants: nuoc ((quan ky) OR (quan ly)) nang xa hoi. hieu ve cac phuc van hanh de ((cua te) or (cuu tre))*.