Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cham hat ca snippets" » "cham mat ca snippets", "pham nhat ca snippets", "nham phat ca snippets", "cham hat cua snippets", "cham tat ca snippets", "cham hat va 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 hat ca 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 hat ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cham hat ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cham hat ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.