Perhaps you should try some spelling variations:
"vit cac chat snippets" » "vit cac code snippets", "vit cao chat snippets", "vit cac thuat snippets", "vit cac nha snippets", "vit ca chat snippets", "vien cac chat snippets", "vat cach 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 ("vit cac 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 ("vit cac chat snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( vit cac chat snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("vit cac chat snippets"))) or ("locating bug core snippets"))*.