Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pho phat cua snippets" » "cho phat cua snippets", "pho phan cua snippets", "phong phat cua snippets", "pho nhat cua snippets", "pho chat cua snippets", "pho hai cua 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: (((("pho phat cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pho phat cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pho phat cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pho phat cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.