Perhaps you should try some spelling variations:
hieu tinh » chieu tinh, lieu tinh, kieu tinh
hanh tang » hanh trang, anh tang, hanh mang
cua trong » cua truong, cua trung, qua trong
tan khoan » toan khoan, tai khoan, tao khoang
khoan cam » khoa cam, khoan va, phan cam
doc hieu » toc thieu, hoc thieu, hoc hien
tang cua » mang cua, hang cua, tang luan
cong tan » cong tac, cong san, cong thanh

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu tinh - hanh tang cua trong cong tan khoan cam~.
• Adding a wildcard symbol may retrieve word variants: doc hieu tinh - hanh tang cua trong cong tan khoan cam*.