Perhaps you should try some spelling variations:
"tho toc cong snippets" » "tho toc code snippets", "tho hoc cong snippets", "tho truoc cong snippets", "tho thuoc cong snippets", "ho toc cong snippets", "thi toc cong snippets", "tho tac cong snippets"
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"

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