Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
kieu tinh » lieu tinh, trieu tinh, diep tinh
chau tinh » cuu tinh, ha tinh, cua tinh
trung pha » trung phan, trung phat, truong phan
trung ha » trung hoc, trung tam, trung cap
cong tac » cong ty
tac toan » tap toan, tam toan, hach toan
toan cao » toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho ((kieu tinh) or (chau tinh)) - thanh ((trung pha) OR (trung ha)) nhung cong tac toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((kieu tinh) OR (chau tinh)) - thanh ((trung pha) OR (trung ha)) nhung cong tac toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho ((kieu tinh) or (chau tinh)) - thanh ((trung pha) OR (trung ha)) nhung cong tac toan cao".
• Adding a wildcard symbol may retrieve word variants: ho ((kieu tinh) or (chau tinh)) - thanh ((trung pha) OR (trung ha)) nhung cong tac toan cao*.