Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dang luc doi snippets" » "nang luc doi snippets", "dong luc doi snippets", "dang duc doi snippets", "dang luoc doi snippets", "dang lua doi snippets", "dang luc moi 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: (((("dang luc 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: (((("dang luc doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dang luc doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dang luc doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.