Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tac vang toc snippets" » "cac van toc snippets", "tac dung toc snippets", "tac dong toc snippets", "tac dan toc snippets", "tac van toi snippets", "tac hang ton 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: (((("tac vang toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tac vang toc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tac vang toc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tac vang toc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.