Perhaps you should try some spelling variations:
manh trung » manh tung, thanh trung, manh hung
chieu sang » chieu sach, chieu xanh, hieu lang
nhung cong » dung cong, thong cong, hang cong
theo sach » thuoc sach, te sach, theo lich
cong sang » cong san, cong lang, cong vang
trung va » truong va, trang va, trung ha
sang tao » hang tai
tao cao » bao cao, toan cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((theo sach) or (chieu sang)) - manh trung va nhung cong sang tao cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((theo sach) OR (chieu sang)) - manh trung va nhung cong sang tao cao.
• Adding a wildcard symbol may retrieve word variants: hoc ((theo sach) or (chieu sang)) - manh trung va nhung cong sang tao cao*.