Perhaps you should try some spelling variations:
thieu tinh » trieu tinh, chieu tinh, thien tinh
trinh xuat » trinh luat, trinh xuan, trinh quan
trich xuat » trinh luat, trinh xuan
tuong cong » truong cong, trong cong, tong cong
hoc thieu » toc thieu, hoc hien
trinh xay » trinh ky
cong san » cong tac
san toan » van toan, dan toan, manh toan
toan ban » van ban

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 tinh - hanh ((((trinh xuat) or (trinh xay))) or (trich xuat)) tuong cong san toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu tinh - hanh ((((trinh xuat) OR (trinh xay))) OR (trich xuat)) tuong cong san toan ban.
• Adding a wildcard symbol may retrieve word variants: hoc thieu tinh - hanh ((((trinh xuat) or (trinh xay))) or (trich xuat)) tuong cong san toan ban*.