Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong dan bon snippets" » "dong dan code snippets", "dong danh bon snippets", "duong dan bon snippets", "dong san bon snippets", "dong dan mon snippets", "dong van bon snippets", "dong dan dong 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 dan bon 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 dan bon snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dong dan bon snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong dan bon snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.