Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"dong kinh do snippets" » "dong kinh code snippets", "trong kinh do snippets", "dong kinh co snippets", "dong trinh do snippets", "dong kinh 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 kinh do 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 kinh do snippets") OR ("python using data snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( dong kinh do snippets ) or ( python using data snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong kinh do snippets") or ("python using data snippets"))) or ("locating bug core snippets"))*.