Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sang tac do snippets" » "sang tao do snippets", "sang tai do snippets", "sang than do snippets", "sang tac dao snippets", "sang tac da snippets", "sang tac de 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 tac do 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 tac do snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sang tac do snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sang tac do snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.