Perhaps you should try some spelling variations:
thanh hai » thanh phan, thanh hoa, thanh san
cac nuoc » cap nuoc, hoc nuoc, dat nuoc
va thanh » gia thanh, ban thanh, va tinh
cau tren » cu tren, dau tren, ca tren
cac luc » cau luc, coc luc, cac cuoc
cuu tre » cua tre, cau treo
tu sai » tu bai, tu san, tu cai
sai ky » sac ky
nang o » nang co, nang ho, nang ro
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sai ky nang o hoi. lieu va ((cac luc) or (cac nuoc)) va thanh hai ((cuu tre) OR (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sai ky nang o hoi. lieu va ((cac luc) OR (cac nuoc)) va thanh hai ((cuu tre) OR (cau tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sai ky nang o hoi. lieu va ((cac luc) or (cac nuoc)) va thanh hai ((cuu tre) OR (cau tren))".
• Adding a wildcard symbol may retrieve word variants: tu sai ky nang o hoi. lieu va ((cac luc) or (cac nuoc)) va thanh hai ((cuu tre) OR (cau tren))*.