Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
sanh thi » anh thi, oanh thi, nhanh thi
hanh tai » thanh tai, hang tai, han tai
cham tuc » nham thuc, pham thuc, tham thuc
cuu tre » cua tre, cau treo
xa hanh » xa thanh, xa khanh, va hanh
so sanh » do sanh
ve cham » va cham, ve chat, vu cham
hang ca » hang va, nang cao, hang tai
hang xa » hoang xa, hang va, lang xa
hieu ve » hieu va, hieu van

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sanh thi ((hang xa) OR (hang ca)) hoi. hieu ve cham tuc xa hanh tai ((cuu tre) or (cau tren))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sanh thi ((hang xa) OR (hang ca)) hoi. hieu ve cham tuc xa hanh tai ((cuu tre) OR (cau tren)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sanh thi ((hang xa) OR (hang ca)) hoi. hieu ve cham tuc xa hanh tai ((cuu tre) or (cau tren))".
• Adding a wildcard symbol may retrieve word variants: so sanh thi ((hang xa) OR (hang ca)) hoi. hieu ve cham tuc xa hanh tai ((cuu tre) or (cau tren))*.