Perhaps you should try some spelling variations:
thanh trung » thanh tung
thiet hach » thien hach, thuyet hach, thiet hai
dang luong » nang luong, dung luong, hang luong
hoc thiet » hoc thieu, hoc thuyet, hoc hien
trung cua » truong cua, trung tuan, trung cap
luong vat » luong va, luong van, luong tai
cua dang » cua cong, cua ban
vat han » vat phan, van han, vat ran
han tap » han tai, toan tap, nhan tai

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thiet hach - thanh trung cua dang luong vat han tap~.
• Adding a wildcard symbol may retrieve word variants: hoc thiet hach - thanh trung cua dang luong vat han tap*.