Perhaps you should try some spelling variations:
khong thong » thong thong, khong trong, thong thuong
hanh trung » thanh trung, hanh trang, manh trung
trung hoac » trung hoc, trung hoa, trung ha
hoac khong » hoa khong, hoc khong, hay khong
thong den » thong dien, thong dan, tuong den
chu sang » chu bang, thu sang, chieu sang
phan cau » phan dau, phan cac, phan lap
cho chu » cho thue

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

• Performing a fuzzy search may retrieve terms with similar spellings: cho chu sang - hanh trung hoac khong thong den ((phan cau) or (phan tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cho chu sang - hanh trung hoac khong thong den ((phan cau) OR (phan tu)).
• Adding a wildcard symbol may retrieve word variants: cho chu sang - hanh trung hoac khong thong den ((phan cau) or (phan tu))*.