Perhaps you should try some spelling variations:
"mau hoa cong snippets" » "mau hoa code snippets", "mau cua cong snippets", "mau va cong snippets", "mau hoa co snippets", "cau hoa cong snippets", "ma hoa cong snippets", "mai hoa cong snippets"
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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 ("mau hoa 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 ("mau hoa cong snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( mau hoa cong snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("mau hoa cong snippets"))) or ("locating bug core snippets"))*.