Perhaps you should try some spelling variations:
dau tieng » dau tien, cau tieng, day tieng
khanh bui » thanh bui, thanh bai, khanh duy
sach ty » sach y, sach tu, sach thu
bui dau » bi dau, buoc dau
truc va » thuc va, thuc vat, trung va
te sach » toc sach
hieu va » lieu va, hieu qua
nang xa » lang xa, nang ma, mang xa
tuc va » thuc va, tuc xa, duc va
va cam » va cham, va cac, va cao

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 ((nang xa) OR (nang x)) hoi. hieu va cam ((tuc va) or (truc va)) khanh bui dau tieng~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty ((nang xa) OR (nang x)) hoi. hieu va cam ((tuc va) OR (truc va)) khanh bui dau tieng*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty ((nang xa) OR (nang x)) hoi. hieu va cam ((tuc va) or (truc va)) khanh bui dau tieng*".