Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"che than cua snippets" » "che thanh cua snippets", "he than cua snippets", "cho thanh cua snippets", "che nhan cua snippets", "che thai cua snippets", "che ban cua 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: (((("che than 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: (((("che than cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( che than cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("che than cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.