Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cham bai so snippets" » "cham bi so snippets", "cham lai so snippets", "ham bai so snippets", "cham dai so snippets", "cham tai so snippets", "cham hai 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 bai 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 bai so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cham bai so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cham bai so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.