Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hap dang cac snippets" » "hap dang code snippets", "hai dang cac snippets", "ha dang cac snippets", "hap dan cac snippets", "hap dung cac snippets", "hap bang cac snippets", "hap dong cac 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 dang cac 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 dang cac snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hap dang cac snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hap dang cac snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.