Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phap vat cha snippets" » "phap vat code snippets", "phap luat cha snippets", "phap phat cha snippets", "phap viet cha snippets", "phap vat chat snippets", "phap vat cua snippets", "phap vat khoa 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 cha 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 cha snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( phap vat cha snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap vat cha snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.