Perhaps you should try some spelling variations:
"tan qua cham snippets" » "tan qua code snippets", "tan qua hai snippets", "tan qua cac snippets", "tan va cham snippets", "tan quy cham snippets", "tan cua cham snippets", "tan sua 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 ("tan qua 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 ("tan qua cham snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( tan qua cham snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("tan qua cham snippets"))) or ("locating bug core snippets"))*.