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 phi thi snippets" » "cua chi thi snippets", "cua phu thi snippets", "chau phi thi snippets", "cua phi tai snippets", "cua phi phi 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: (((("cua phi thi snippets") OR ("python using data snippets"))) OR ("locating bug core snippets"))~.
• Removing quotes may allow a broader search: (((( cua phi thi snippets ) or ( python using data snippets ))) or ( locating bug core snippets ))~.
• Adding a wildcard symbol may retrieve word variants: (((("cua phi thi snippets") or ("python using data snippets"))) or ("locating bug core snippets"))*.