Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"phac sua voi snippets" » "khat sua voi snippets", "phap su voi snippets", "phuc su voi snippets", "phac sua doi snippets", "phac dua voi snippets", "phac su voi 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: (((("phac sua voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phac sua voi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( phac sua voi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phac sua voi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.