Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
cau treo » cau theo, cau tren, cau triet
hinh tai » chinh tai, hinh thai, hinh bai
cham tuc » nham thuc, pham thuc, tham thuc
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
nang ma » tang ma, sang ma, nang cao
tu sach » thu sach, su sach, te sach
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y ((nang ma) or (nang x)) hoi. hieu ve cham tuc va ((hinh tai) or (thanh tai)) cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach y ((nang ma) OR (nang x)) hoi. hieu ve cham tuc va ((hinh tai) OR (thanh tai)) cau treo.
• Adding a wildcard symbol may retrieve word variants: tu sach y ((nang ma) or (nang x)) hoi. hieu ve cham tuc va ((hinh tai) or (thanh tai)) cau treo*.