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