Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"don tinh so snippets" » "doan tinh so snippets", "dong tinh so snippets", "den tinh so snippets", "don tinh son snippets", "don tinh soc snippets", "don dinh so 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: (((("don tinh so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("don tinh so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( don tinh so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("don tinh so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.