Perhaps you should try some spelling variations:
thong tuong » thong thuong, thong thong, thong duong
hieu lang » chieu sang, hieu quang, nhieu tang
tang luan » dung luan
tuong dan » huong dan, tung dan, xuong dan
tang cua » mang cua, hang cua, thong cua
dan toan » van toan, dan than, manh toan
toan tap » toan ban
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - hanh ((tang cua) or (tang luan)) thong tuong dan toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - hanh ((tang cua) OR (tang luan)) thong tuong dan toan tap.
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - hanh ((tang cua) or (tang luan)) thong tuong dan toan tap*.