Perhaps you should try some spelling variations:
thieu khang » chieu khong, thieu quang
chieu sach » chinh sach, chiet tach, chieu sang
cua nhung » va nhung
tuong anh » truong anh, tuong lanh, vuong anh
trong anh » truong anh, trong nganh, trong doanh
mang cua » manh cua, dung cua, ban cua
quan cau » quang cao, toan cau, quan ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((thieu khang) or (chieu sach)) - cach mang cua nhung ((tuong anh) OR (trong anh)) quan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu khang) OR (chieu sach)) - cach mang cua nhung ((tuong anh) OR (trong anh)) quan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu khang) or (chieu sach)) - cach mang cua nhung ((tuong anh) OR (trong anh)) quan cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu khang) or (chieu sach)) - cach mang cua nhung ((tuong anh) OR (trong anh)) quan cau*.