Perhaps you should try some spelling variations:
thanh trung » thanh tung
theo chieu » theo tieu, ho chieu, theo chu
thong cong » trong cong, tong cong, thong thong
hoc thieu » toc thieu, hoc hien
trung cua » truong cua, trung tuan, trung cap
cua thong » cua thuong, cua khong, cua tong
cong tac » cong ty
tac khan » tac nhan, cac khoan, tac chuan
khan cap » khan ap, than cap, khoan cam
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((doi chi) or (theo chieu))) or (hoc thieu)) sach - thanh trung cua thong cong tac khan cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((doi chi) OR (theo chieu))) OR (hoc thieu)) sach - thanh trung cua thong cong tac khan cap.
• Adding a wildcard symbol may retrieve word variants: ((((doi chi) or (theo chieu))) or (hoc thieu)) sach - thanh trung cua thong cong tac khan cap*.