Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duong noi se snippets" » "duong loi se snippets", "duong nhi se snippets", "duong hoi se snippets", "duong noi ve snippets", "duong noi so snippets", "duong noi de 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 noi se 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 noi se snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duong noi se snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duong noi se snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.