Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quoc si con snippets" » "duoc si con snippets", "quoc so con snippets", "quoc su con snippets", "quoc vi con snippets", "quoc sinh con 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: (((("quoc si con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quoc si con snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quoc si con snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quoc si con snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.