Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phat am hoi snippets" » "phat nam hoi snippets", "phat am hoc snippets", "phat cham hoi snippets", "phan am hoi snippets", "pham am hoi snippets", "phap am hoi 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: (((("phat am hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phat am hoi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phat am hoi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phat am hoi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.