Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phap moi son snippets" » "phap mo son snippets", "phap boi son snippets", "pham moi son snippets", "phap mai son snippets", "phap moi con snippets", "phap doi song 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: (((("phap moi son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phap moi son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phap moi son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap moi son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.