Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duong qua ve snippets" » "duong quan ve snippets", "duong quay ve snippets", "duong qua va snippets", "dung qua ve snippets", "huong qua ve snippets", "dong qua ve 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: (((("duong qua ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duong qua ve snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duong qua ve snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duong qua ve snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.