Perhaps you should try some spelling variations:
"phu hao cach snippets" » "phu hao code snippets", "phu nhan cach snippets", "phu phap cach snippets", "phu va cach snippets", "phu ha cach snippets", "hu hao cach snippets", "thu thao cach 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 ("phu hao cach snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("phu hao cach snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( phu hao cach snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("phu hao cach snippets"))) or ("locating bug core snippets"))*.