Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phap vat cao snippets" » "phap vat code snippets", "phap luat cao snippets", "phap phat cao snippets", "phap viet cao snippets", "phap va cao snippets", "phap vat co snippets", "phap vat 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: (((("phap vat cao snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phap vat cao snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( phap vat cao snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap vat cao snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.