Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nom nam he snippets" » "noi nam he snippets", "nam nam he snippets", "ngoc nam he snippets", "nom nam ha snippets", "nom nam hien snippets", "nom nam nghe 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: (((("nom nam he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nom nam he snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nom nam he snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nom nam he snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.