Perhaps you should try some spelling variations:
nganh thanh » nhanh thanh, danh thanh, nhanh thang
dat tren » dat trong, dua tren
sach thu » sach thue, sach thieu, sach tham
thanh di » thanh doi, thanh de, thanh do
hieu van » hieu va, thien van, lieu va
cam luc » cau luc
tu sach » thu sach, su sach, te sach
nang xa » lang xa, nang ma, mang xa
di dat » de dat, di vat, dinh dat

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 thu ((nang xa) or (nang x)) hoi. hieu van ((cam luc) or (cam xuc)) nganh thanh di dat tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach thu ((nang xa) OR (nang x)) hoi. hieu van ((cam luc) OR (cam xuc)) nganh thanh di dat tren.
• Adding a wildcard symbol may retrieve word variants: tu sach thu ((nang xa) or (nang x)) hoi. hieu van ((cam luc) or (cam xuc)) nganh thanh di dat tren*.