Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong sin ho snippets" » "dong sin code snippets", "dong san ho snippets", "dong son ho snippets", "dong tin ho snippets", "dong sinh hoc 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 sin ho 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 sin ho snippets") OR ("python using data snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dong sin ho snippets ) or ( python using data snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong sin ho snippets") or ("python using data snippets"))) or ("locating bug core snippets"))*.