Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong luc can snippets" » "dong luc code snippets", "nang luc can snippets", "dong luc canh snippets", "dong luoc can snippets", "dong luc cao snippets"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing 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 luc can snippets") or ("python using data snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong luc can snippets") OR ("python using data snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dong luc can snippets ) or ( python using data snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong luc can snippets") or ("python using data snippets"))) or ("locating bug core snippets"))*.