Perhaps you should try some spelling variations:
"tuc cao dong snippets" » "tuc cao code snippets", "tuc cao dang snippets", "tuc lao dong snippets", "tuc cao cong snippets", "thuc cao dong snippets", "tuc co dong snippets", "tuc cac dong 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 ("tuc cao dong snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("tuc cao dong snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( tuc cao dong snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("tuc cao dong snippets"))) or ("locating bug core snippets"))*.