Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khi ta den snippets" » "khi va den snippets", "khi thai den snippets", "khi tham den snippets", "khi tac den snippets", "khi tat den snippets", "khi tu den 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: (((("khi ta den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khi ta den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khi ta den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khi ta den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.