Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"chao van toc snippets" » "chao van code snippets", "cao van toc snippets", "hao van toc snippets", "thao van toc snippets", "chao van hoc snippets", "chao dan toc snippets", "chao van toi snippets"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("chao van toc snippets") OR ("python using data snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"chao van toc snippets\") OR (\"python using data snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( chao van toc snippets ) OR ( python using data snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chao van toc snippets") OR ("python using data snippets"))) OR ("locating bug core snippets"))*.