Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hoa chinh » hoan chinh, hoa hinh, hoa thinh
hoc chinh » hoan chinh, hoc sinh, hoc kinh
truong va » truong cao, truong dao, luong va
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh 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: ((hoa chinh) OR (hoc chinh)) sach - thanh ((truong va) or (truong dai)) nhung cong manh toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoa chinh) OR (hoc chinh)) sach - thanh ((truong va) OR (truong dai)) nhung cong manh toan cao.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoa chinh) OR (hoc chinh)) sach - thanh ((truong va) or (truong dai)) nhung cong manh toan cao".
• Adding a wildcard symbol may retrieve word variants: ((hoa chinh) OR (hoc chinh)) sach - thanh ((truong va) or (truong dai)) nhung cong manh toan cao*.