Perhaps you should try some spelling variations:
cau treo » cau theo, cau tren, cau triet
thanh va » thanh van, hanh va, thanh ha
thanh vi » hanh vi, thanh ve, nhanh vi
hoc thuc » hoc huu
coc tuc » coc luc, doc thuc, hoc truc
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
te sach » toc sach
y lang » o lang, _ lang, tay lang

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach y lang xa hoi. hieu ve ((coc tuc) OR (hoc thuc)) xa ((thanh vi) or (thanh va)) cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y lang xa hoi. hieu ve ((coc tuc) OR (hoc thuc)) xa ((thanh vi) OR (thanh va)) cau treo.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y lang xa hoi. hieu ve ((coc tuc) OR (hoc thuc)) xa ((thanh vi) or (thanh va)) cau treo".
• Adding a wildcard symbol may retrieve word variants: te sach y lang xa hoi. hieu ve ((coc tuc) OR (hoc thuc)) xa ((thanh vi) or (thanh va)) cau treo*.