Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thi lan time snippets" » "thi lead time snippets", "thi long time snippets", "thi a time snippets", "thi hanh time snippets", "thi nang time snippets", "thi lien time 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: (((("thi lan time snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thi lan time snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thi lan time snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thi lan time snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.