Perhaps you should try some spelling variations:
"cac nam cham snippets" » "cac nam code snippets", "cac nang cham snippets", "cac nam chi snippets", "cac nam cao snippets", "bac nam cham snippets", "cac cam cham snippets", "cac ham cham 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 ("cac nam cham snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("cac nam cham snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( cac nam cham snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("cac nam cham snippets"))) or ("locating bug core snippets"))*.