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