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