Perhaps you should try some spelling variations:
thanh trung » thanh tung
trinh phan » trinh han, trinh quan, thanh phan
hiem ngan » kim ngan, viem gan
trung cua » truong cua, trung tuan, trung cap
hoc hiem » hoc hien, hoc thieu, hoc thiet
ban cong » bang cong, van cong, phan cong
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc hiem ngan - thanh trung cua ban cong trinh phan dau~.
• Adding a wildcard symbol may retrieve word variants: hoc hiem ngan - thanh trung cua ban cong trinh phan dau*.