Perhaps you should try some spelling variations:
"tin do cong snippets" » "tin do code snippets", "tin doi cong snippets", "tin do hong snippets", "tin bo cong snippets", "tien do cong snippets", "tin don cong snippets", "tinh do 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 ("tin do 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 ("tin do cong snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( tin do cong snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("tin do cong snippets"))) or ("locating bug core snippets"))*.