Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
thong cong » trong cong, tong cong, thong thong
trinh mat » trinh may, trinh mau, trinh sat
trinh vat » trinh van, trinh luat, sinh vat
cong manh » cong danh, duong manh, cong thanh
ho chieu » theo chieu, hoc thieu, doi chieu

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 - canh ((trinh mat) OR (trinh vat)) thong cong manh ((toan ban) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - canh ((trinh mat) OR (trinh vat)) thong cong manh ((toan ban) OR (van ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu tinh - canh ((trinh mat) OR (trinh vat)) thong cong manh ((toan ban) or (van ban))".
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - canh ((trinh mat) OR (trinh vat)) thong cong manh ((toan ban) or (van ban))*.