Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"boc van hoe snippets" » "hoc van hoe snippets", "oc van hoe snippets", "bach van hoe snippets", "boc van hoa snippets", "boc van hoc snippets", "boc van hieu snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("boc van hoe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("boc van hoe snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( boc van hoe snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("boc van hoe snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.