Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"nen thanh ca snippets" » "den thanh ca snippets", "yen thanh ca snippets", "tien thanh ca snippets", "nen thanh cha snippets", "nen thanh cac snippets", "nen thanh ha snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("nen thanh ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("nen thanh ca snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( nen thanh ca snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("nen thanh ca snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.