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