Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"he hoi cua snippets" » "he hoi chuc snippets", "le hoi cua snippets", "me hoi cua snippets", "he moi cua snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"he hoi cua snippets\") OR (\"python using java snippets\"))) OR (\"locating bug code snippets\"))~".
• Removing quotes may allow a broader search: (((( he hoi cua snippets ) OR ( python using java snippets ))) OR ( locating bug code snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("he hoi cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets"))*.