Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc chu lo snippets" » "hoc cau lo snippets", "hoc cho lo snippets", "hoc thuc lo snippets", "hoc chu ho snippets", "hoc chua loc 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: (((("hoc chu lo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc chu lo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc chu lo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc chu lo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.