Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoi bac cua snippets" » "hoi bai cua snippets", "hoi ba cua snippets", "hoi bat cua snippets", "hoi ban cua snippets", "hoi tac 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: (((("hoi bac 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: (((("hoi bac cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoi bac cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoi bac cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.