Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sang dao den snippets" » "sang tao den snippets", "nang dao den snippets", "giang dao den snippets", "sang dao dan snippets", "sang dan den snippets", "sang day 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: (((("sang dao 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: (((("sang dao den snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sang dao den snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sang dao den snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.