Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"
"ban phu theo snippets" » "ban phu tho snippets", "ban pham theo snippets", "ban chuc theo snippets", "ban phuc theo snippets", "san phu theo snippets", "van phu theo 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: (((("ban phu theo snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("ban phu theo snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( ban phu theo snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("ban phu theo snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.