Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"nha hoc cong snippets" » "nha hoc code snippets", "nha hoc co snippets", "nha cac cong snippets", "nha hoc dung snippets", "nha thuoc cong snippets", "khoa hoc cong snippets", "nha nuoc cong 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: (((("nha hoc cong snippets") OR ("python using data snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"nha hoc cong snippets\") OR (\"python using data snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( nha hoc cong snippets ) OR ( python using data snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nha hoc cong snippets") OR ("python using data snippets"))) OR ("locating bug core snippets"))*.