Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"cach van ca snippets" » "cac van ca snippets", "bach van ca snippets", "canh van ca snippets", "cach van cau snippets", "cach van cua snippets", "cach dan 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: (((("cach van 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: (((("cach van ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( cach van ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cach van ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.