Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hap dan cach snippets" » "hap dan code snippets", "hap dan cac snippets", "hap dan canh snippets", "hap nhan cach snippets", "hat dan cach snippets", "hai dan cach snippets", "ham dan cach snippets"
"python using java snippets" » "python using data 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: (((("hap dan cach snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hap dan cach snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hap dan cach snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hap dan cach snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.