Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cham ninh so snippets" » "cham binh so snippets", "cham tinh so snippets", "pham minh so snippets", "cham dinh so snippets", "cham hinh so snippets", "cham kinh 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: (((("cham ninh 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: (((("cham ninh so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cham ninh so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cham ninh so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.