Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"python using java grippers" » "python using data grippers", "python using java slippers"
"tao trinh tu slippery" » "tao tinh tu slippery", "tho trinh tu slippery", "giao trinh tu slippery", "tao trinh ky slippery", "tao trinh do slippery", "tao trinh tu slippers"

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 grippers") or ("tao trinh tu slippery"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java grippers") OR ("tao trinh tu slippery"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java grippers ) or ( tao trinh tu slippery ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java grippers") or ("tao trinh tu slippery"))) or ("locating bug core snippets"))*.