Perhaps you should try some spelling variations:
cau tren » cu tren, dau tren, ca tren
danh tai » doanh tai, dinh tai, hanh tai
kham loc » khai luoc, kham cuoc, hau loc
cuu tre » cau treo
cua tre » cua te, cua triet, dua tren
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
vu kham » vu khanh
hieu vu » hieu va, hieu ve, hieu su
xang xa » lang xa, mang xa, ang xa
va danh » va dinh, va dan, va hanh
loc va » hoc va, luc va

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 ty xang xa hoi. hieu vu kham loc va danh tai ((cua tre) or (((cuu tre) OR (cau tren))))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty xang xa hoi. hieu vu kham loc va danh tai ((cua tre) OR (((cuu tre) OR (cau tren)))).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ty xang xa hoi. hieu vu kham loc va danh tai ((cua tre) or (((cuu tre) OR (cau tren))))".
• Adding a wildcard symbol may retrieve word variants: tu sach ty xang xa hoi. hieu vu kham loc va danh tai ((cua tre) or (((cuu tre) OR (cau tren))))*.