Perhaps you should try some spelling variations:
chung tuong » chung thong, nhung tuong, chuong duong
luan chung » luan chinh
hieu lang » chieu sang, hieu quang, nhieu tang
hanh nang » anh nang, ganh nang, hanh mang
nang luan » tang luan, hang luan, nang quan
tuong dan » huong dan, tung dan, xuong dan
thanh ban » thanh san, thanh van, thanh bac
hieu van » hieu va, thien van, lieu va
than ban » toan ban, than man, nhuan ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((hieu lang) or (hieu van)) - hanh nang luan chung tuong dan ((than ban) OR (thanh ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((hieu lang) OR (hieu van)) - hanh nang luan chung tuong dan ((than ban) OR (thanh ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((hieu lang) or (hieu van)) - hanh nang luan chung tuong dan ((than ban) OR (thanh ban))".
• Adding a wildcard symbol may retrieve word variants: theo ((hieu lang) or (hieu van)) - hanh nang luan chung tuong dan ((than ban) OR (thanh ban))*.