Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tra hay cac snippets" » "tra ha cac snippets", "tra xay cac snippets", "tra hai cac snippets", "tra tay cac snippets", "tra vay cac snippets", "tra phan cac 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 hay cac 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 hay cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tra hay cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tra hay cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.