Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thi lieu so snippets" » "thi lieu code snippets", "tai lieu so snippets", "thi lien so snippets", "thi dieu so snippets", "thi hieu so snippets", "thi thieu so snippets", "thi lieu hoc 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.

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