Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
lang van » dang van, tang van, hoang van
hanh dat » thanh dat, anh dat, hanh cat
ban hanh » ban hang
cuc ban » cua ban, cac ban, cuu ban
cam cuc » cam xuc, cham cuu, pham cuc
hieu ve » hieu va, hieu van
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang ma » tang ma, sang ma, nang cao
nang xa » nang x, lang xa, mang xa
ve cam » ve cham, ve cac, va cam

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 ky ((((nang xa) or (nang ma))) or (lang van)) hoi. hieu ve cam cuc ban hanh dat cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky ((((nang xa) OR (nang ma))) OR (lang van)) hoi. hieu ve cam cuc ban hanh dat cau tren.
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((((nang xa) or (nang ma))) or (lang van)) hoi. hieu ve cam cuc ban hanh dat cau tren*.