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