Perhaps you should try some spelling variations:
"moi tao chat snippets" » "moi tao code snippets", "moi cao chat snippets", "moi van chat snippets", "moi tao cao snippets", "moi tai chat snippets", "moi vao chat snippets", "moi thoi chat 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 ("moi tao chat snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("moi tao chat snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( moi tao chat snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("moi tao chat snippets"))) or ("locating bug core snippets"))*.