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