Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nam duoc ke snippets" » "nam thuoc ke snippets", "da duoc ke snippets", "dat duoc ke snippets", "nam duoc ky snippets", "nam nuoc ke snippets", "nam duuoc ky 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: (((("nam duoc ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nam duoc ke snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nam duoc ke snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nam duoc ke snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.