Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
thanh tung » thanh cong
thong cong » trong cong, tong cong, thong thong
cua thong » cua thuong, cua khong, cua tong
ho chieu » theo chieu, hoc thieu, doi chieu
tung cua » trung cua, tuong cua, dung cua
cong can » cong san, cong tan, cong dan
chon cac » cho cac, thong cac, hoc cac
phan cac » nhan cach, phan dau, phan lap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu tinh - thanh tung cua thong cong can ((chon cac) or (phan cac))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - thanh tung cua thong cong can ((chon cac) OR (phan cac)).
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - thanh tung cua thong cong can ((chon cac) or (phan cac))*.