Perhaps you should try some spelling variations:
khong thong » thong thong, khong trong, thong thuong
chieu sang » chieu sach, chieu xanh, hieu lang
hanh trang » thanh trung, canh tranh, hanh trinh
thong tran » thong than, thong tren, phuong tran
trang hua » trang ha, trang huy, trang phuc
hua khong » hoa khong, cua khong, hoac khong
toan cao » toan ban, toan tap

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 sang) or (lieu va)) - hanh trang hua khong thong tran ((toan cao) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu sang) OR (lieu va)) - hanh trang hua khong thong tran ((toan cao) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu sang) or (lieu va)) - hanh trang hua khong thong tran ((toan cao) or (van ban))*.