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"
"cua dat anh snippets" » "cua dan anh snippets", "cua vat anh snippets", "cua dai anh snippets", "cua sat anh snippets", "cua dat khanh snippets", "cua nhat anh snippets"

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("cua dat anh snippets") OR ("python using data snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"cua dat anh snippets\") OR (\"python using data snippets\"))) OR (\"locating bug core snippets\"))*".
• Removing quotes may allow a broader search: (((( cua dat anh snippets ) OR ( python using data snippets ))) OR ( locating bug core snippets ))*.