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"
"dan cho sio2 snippets" » "dan cao sio2 snippets", "dan cho sinh snippets", "dan bao sio2 snippets", "danh cho sio2 snippets", "san cho sio2 snippets", "dac cho sio2 snippets"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dan cho sio2 snippets") OR ("python using data snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"dan cho sio2 snippets\") OR (\"python using data snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( dan cho sio2 snippets ) OR ( python using data snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dan cho sio2 snippets") OR ("python using data snippets"))) OR ("locating bug core snippets"))*.