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