Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"son cong noi snippets" » "song cong noi snippets", "bon cong noi snippets", "san cong noi snippets", "son cong nhoi snippets", "son cong goi snippets", "son cong soi 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: (((("son cong noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("son cong noi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( son cong noi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("son cong noi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.