Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"time hieu co snippets" » "tim hieu co snippets", "tin hieu co snippets", "tich hieu co snippets", "time hieu so snippets", "time hieu bo snippets", "time hieu ca 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: (((("time hieu co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("time hieu co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( time hieu co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("time hieu co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.