Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"huong dan mo snippets" » "huong dan code snippets", "huong dan mon snippets", "huong dan so snippets", "huong fan mo 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: (((("huong dan mo snippets") or ("python using data snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("huong dan mo snippets") OR ("python using data snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( huong dan mo snippets ) or ( python using data snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huong dan mo snippets") or ("python using data snippets"))) or ("locating bug core snippets"))*.