Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"thi trinh do snippets" » "thi trinh code snippets", "tho trinh do snippets", "thi thanh do snippets", "thi minh do snippets", "thi trinh ky snippets"
"python using data snippets" » "python using java snippets", "python using sat snippets", "python missing 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 data snippets") or ("thi trinh do snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using data snippets") OR ("thi trinh do snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using data snippets ) or ( thi trinh do snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using data snippets") or ("thi trinh do snippets"))) or ("locating bug core snippets"))*.