Perhaps you should try some spelling variations:
"tat cao cong snippets" » "tat cao code snippets", "tat cac cong snippets", "tat cao dang snippets", "tat cua cong snippets", "tao cao cong snippets", "tay cao cong snippets", "tat bao 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 ("tat cao 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 ("tat cao cong snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( tat cao cong snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("tat cao cong snippets"))) or ("locating bug core snippets"))*.