Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tra hai doi snippets" » "tran hai doi snippets", "tra ha doi snippets", "ta hai doi snippets", "tra thai doi snippets", "tra hai moi snippets", "tra hat 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: (((("tra hai 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: (((("tra hai doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tra hai doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tra hai doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.