Perhaps you should try some spelling variations:
thanh va » thanh van, hanh va, thanh ha
luoc gia » quoc gia, luc gia, luong gia
dang xay » dang van, van xay
cam luoc » cam xuc, tom luoc, cam lo
te sach » toc sach
hieu ve » hieu va, hieu van
sach ty » sach y, sach tu, sach thu
lang xa » lang ha, lang van
cuu tre » cua tre, cau tren, cau treo
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: te sach ty ((lang xa) OR (dang xay)) hoi. hieu ve cam luoc gia ((hanh vi) or (thanh va)) cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty ((lang xa) OR (dang xay)) hoi. hieu ve cam luoc gia ((hanh vi) OR (thanh va)) cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty ((lang xa) OR (dang xay)) hoi. hieu ve cam luoc gia ((hanh vi) or (thanh va)) cuu tre".
• Adding a wildcard symbol may retrieve word variants: te sach ty ((lang xa) OR (dang xay)) hoi. hieu ve cam luoc gia ((hanh vi) or (thanh va)) cuu tre*.