Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"than de doi snippets" » "thanh de doi snippets", "toan de doi snippets", "than dieu doi snippets", "than te doi snippets", "than ve doi snippets", "than ke doi 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: (((("than de doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("than de doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( than de doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("than de doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.