Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu hach » thien hach, chieu sach, hieu cach
nhung cong » dung cong, thong cong, nhung don
hoc thieu » toc thieu, hoc hien
trung cua » truong cua, trung tuan, trung cap
hang cong » dang cong, hang nong, bang cong
san bao » van bao, san bai, san giao
bao cau » bao cao, bo cau, tao cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu hach - thanh trung cua ((nhung cong) or (hang cong)) san bao cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu hach - thanh trung cua ((nhung cong) OR (hang cong)) san bao cau.
• Adding a wildcard symbol may retrieve word variants: hoc thieu hach - thanh trung cua ((nhung cong) or (hang cong)) san bao cau*.