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"
"de tu ngan snippets" » "de vu ngan snippets", "de tu ngay snippets", "de te ngan snippets", "do tu ngan snippets"

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

• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using data snippets") OR ("de tu ngan snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( python using data snippets ) or ( de tu ngan snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("python using data snippets") or ("de tu ngan snippets"))) or ("locating bug core snippets"))*.