Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cach ta cua snippets" » "cach tu cua snippets", "cach pha cua snippets", "xach tay cua snippets", "cach ta chua snippets", "cach ca cua snippets", "cach ma 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: (((("cach ta 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: (((("cach ta cua snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cach ta cua snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cach ta cua snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.