Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hap menh cua snippets" » "hap menh code snippets", "hap benh cua snippets", "phap lenh cua snippets", "van menh cua snippets", "hap manh cua snippets", "hap benh chua snippets", "hap mang 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 menh 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 menh cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hap menh cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hap menh cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.