Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
tieu tinh » tieu trinh, lieu tinh, kieu tinh
trang cua » tranh cua, tang cua, thang cua
trung cua » truong cua, trung tuan, trung cap
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van 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 ((tieu tinh) or (trieu tinh)) - hanh ((trang cua) OR (trung cua)) nhung cong tan toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((tieu tinh) OR (trieu tinh)) - hanh ((trang cua) OR (trung cua)) nhung cong tan toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((tieu tinh) or (trieu tinh)) - hanh ((trang cua) OR (trung cua)) nhung cong tan toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((tieu tinh) or (trieu tinh)) - hanh ((trang cua) OR (trung cua)) nhung cong tan toan ban*.