Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lanh dao doi snippets" » "lanh dao do snippets", "lanh dao noi snippets", "lanh dao voi snippets", "lan dao doi snippets", "anh dao doi snippets", "hanh dao doi 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: (((("lanh dao 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: (((("lanh dao doi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lanh dao doi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lanh dao doi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.