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