Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pha su hoan snippets" » "pha su han snippets", "pha vu hoan snippets", "pha thu hoan snippets", "phap su hoan snippets", "pha suc hoan snippets", "pha du hoan 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: (((("pha su hoan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pha su hoan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pha su hoan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pha su hoan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.