Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sang cho le snippets" » "danh cho le snippets", "dung cho le snippets", "sang tao le snippets", "sang cho led snippets", "sang cho he snippets", "sang cho xe 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: (((("sang cho le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sang cho le snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sang cho le snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sang cho le snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.