Perhaps you should try some spelling variations:
thanh tung » thanh cong
nhung cong » dung cong, thong cong, hang cong
lieu tinh » trieu tinh, diep tinh, bien tinh
cua nhung » va nhung
cong hoan » cong hoa, dong hoa, cong san
tung cua » trung cua, tuong cua, dung cua
khoan va » doan va, khoa ma, nhan va
khoa cap » khoa cam, khoa tap, khoa can
ho lieu » so lieu, co lieu, ho kieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho lieu tinh - thanh tung cua nhung cong hoan ((khoan va) or (khoa cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho lieu tinh - thanh tung cua nhung cong hoan ((khoan va) OR (khoa cap)).
• Adding a wildcard symbol may retrieve word variants: ho lieu tinh - thanh tung cua nhung cong hoan ((khoan va) or (khoa cap))*.