Perhaps you should try some spelling variations:
hanh doi » thanh doi, hanh noi, hang doi
te sach » toc sach
doi cua » dai cua, hoi cua, dong cua
sach ty » sach y, sach tu, sach thu
hieu va » lieu va, hieu qua
va cham » va chat, va tham
nang xa » nang x, lang xa, mang xa
nang ma » tang ma, sang ma, nang cao
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa
cua te » cua tu

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 ma)) hoi. hieu va cham ((xuc va) OR (tuc va)) hanh doi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty ((nang xa) OR (nang ma)) hoi. hieu va cham ((xuc va) OR (tuc va)) hanh doi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty ((nang xa) or (nang ma)) hoi. hieu va cham ((xuc va) OR (tuc va)) hanh doi cua te".
• Adding a wildcard symbol may retrieve word variants: te sach ty ((nang xa) or (nang ma)) hoi. hieu va cham ((xuc va) OR (tuc va)) hanh doi cua te*.