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