Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"duc do canh snippets" » "duc doi canh snippets", "duc do sanh snippets", "duc do danh snippets", "duc dao canh snippets", "duoc do canh snippets", "muc do canh 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: (((("duc do canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("duc do canh snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( duc do canh snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("duc do canh snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.