Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong cot loi snippets" » "dong co loi snippets", "tong cot loi snippets", "dong tot loi snippets", "dong cot soi snippets", "dong mot loai 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: (((("dong cot loi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong cot loi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong cot loi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong cot loi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.