Perhaps you should try some spelling variations:
"doc cao cong snippets" » "doc cao code snippets", "doc cac cong snippets", "doc cao dang snippets", "doc cua cong snippets", "hoc cao cong snippets", "do cao cong snippets", "doc dao 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 ("doc cao cong snippets"))) OR ("locating bug core snippets"))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"python using java snippets\") OR (\"doc cao cong snippets\"))) OR (\"locating bug core snippets\"))".
• Removing quotes may allow a broader search: (((( python using java snippets ) OR ( doc cao cong snippets ))) OR ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") OR ("doc cao cong snippets"))) OR ("locating bug core snippets"))*.