Perhaps you should try some spelling variations:
nhieu tang » hieu lang, nhiet nang
chieu sang » chieu sach, chieu xanh, hieu lang
trang cap » trung cap, tranh chap, trang cham
trong cap » trung cap, trong cac, trong ca
thong tan » thong than, thong tran, thong tin
tan ran » tan tran, tan van, tan san
ran cau » van cau, ban cau, can cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((nhieu tang) or (chieu sang)) - hanh ((trang cap) OR (trong cap)) thong thong tan ran cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((nhieu tang) OR (chieu sang)) - hanh ((trang cap) OR (trong cap)) thong thong tan ran cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((nhieu tang) or (chieu sang)) - hanh ((trang cap) OR (trong cap)) thong thong tan ran cau".
• Adding a wildcard symbol may retrieve word variants: hoc ((nhieu tang) or (chieu sang)) - hanh ((trang cap) OR (trong cap)) thong thong tan ran cau*.