Perhaps you should try some spelling variations:
phong chong » thong thong
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh tung » thanh cong
doi chieu » doc hieu, doi chi, mot chieu
tam phong » tai phong, nam phong, tay phong
chong vat » chong va, dong vat, thong va
tung tam » trung tam, vung tam, dung tam
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: doi chieu xanh - thanh tung tam phong chong vat phan tu~.
• Adding a wildcard symbol may retrieve word variants: doi chieu xanh - thanh tung tam phong chong vat phan tu*.