Perhaps you should try some spelling variations:
theo chieu » theo tieu, ho chieu, thi chieu
thong cong » trong cong, tong cong, thong thong
trinh han » trinh quan
theo chu » cho chu, chao chu, theo yeu
trinh ha » trinh hoa, trinh nha, trinh he
cong vat » dong vat, cong va, cang vat
vat phan » va phan, van phan, sat phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) or (theo chu)) sang - canh ((trinh ha) OR (trinh han)) thong cong vat phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (theo chu)) sang - canh ((trinh ha) OR (trinh han)) thong cong vat phan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) or (theo chu)) sang - canh ((trinh ha) OR (trinh han)) thong cong vat phan tu".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (theo chu)) sang - canh ((trinh ha) OR (trinh han)) thong cong vat phan tu*.