Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
phung cong » nhung cong, phong cong, nhung chong
hoc chieu » hoc thieu, ho chieu, hoc hien
cong dan » cong san, cong tan, huong dan
than tap » toan tap, han tap, than cap
phan tap » phan lap, han tap, pha tap
nhan va » nhan tai, nhan dan, nhan tao
han va » hang va, hanh va, ban va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc chieu xanh - hanh ((han va) OR (nhan va)) phung cong dan ((than tap) or (phan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu xanh - hanh ((han va) OR (nhan va)) phung cong dan ((than tap) OR (phan tap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu xanh - hanh ((han va) OR (nhan va)) phung cong dan ((than tap) or (phan tap))".
• Adding a wildcard symbol may retrieve word variants: hoc chieu xanh - hanh ((han va) OR (nhan va)) phung cong dan ((than tap) or (phan tap))*.