Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi he noi snippets" » "thi hue noi snippets", "thi hoe noi snippets", "thi ha noi snippets", "thi he moi snippets", "thi ghep noi 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: (((("thi he noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi he noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi he noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi he noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.