Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"van anh ho snippets" » "van anh code snippets", "van thanh ho snippets", "van minh ho snippets", "tuan anh ho snippets", "van anh tho snippets", "van anh hoc snippets", "van manh ho 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: (((("van anh ho snippets") OR ("python using data snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"van anh ho snippets\") OR (\"python using data snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( van anh ho snippets ) OR ( python using data snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van anh ho snippets") OR ("python using data snippets"))) OR ("locating bug core snippets"))*.