Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using raw snippets" » "python using real snippets", "python using a snippets", "python using low snippets"
"qua cac doanh snippets" » "qua cac dan snippets", "qua cac dang snippets", "qua van doanh snippets", "cua cac doanh snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using raw snippets") or ("qua cac doanh snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using raw snippets") OR ("qua cac doanh snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using raw snippets ) or ( qua cac doanh snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using raw snippets") or ("qua cac doanh snippets"))) or ("locating bug core snippets"))*.