Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing data snippets"
"nha hoc anh snippets" » "nha thuoc anh snippets", "khoa hoc anh snippets", "nha nuoc anh snippets", "nha hoc nganh snippets", "nha hoc nhanh snippets", "nha hoc sinh snippets"

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"nha hoc anh snippets\") OR (\"python using data snippets\"))) OR (\"locating bug core snippets\"))~".
• Removing quotes may allow a broader search: (((( nha hoc anh snippets ) OR ( python using data snippets ))) OR ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("nha hoc anh snippets") OR ("python using data snippets"))) OR ("locating bug core snippets"))*.