Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
hanh gian » thanh gian, thanh giang, manh giang
hieu van » hieu va, thien van, hieu ve
gian cua » gian xu, ban cua
sach ty » sach y, sach tu, sach thu
cam buc » cam xuc, nam buoc
xa hanh » xa thanh, xa khanh, va hanh
cua tre » cua te, cuu tre, cua triet
buc xa » tuc xa

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: thuat sach ty ((mang may) or (nang x)) hoi. ((hieu van) OR (lieu va)) cam buc xa hanh gian cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ty ((mang may) OR (nang x)) hoi. ((hieu van) OR (lieu va)) cam buc xa hanh gian cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ty ((mang may) or (nang x)) hoi. ((hieu van) OR (lieu va)) cam buc xa hanh gian cua tre".
• Adding a wildcard symbol may retrieve word variants: thuat sach ty ((mang may) or (nang x)) hoi. ((hieu van) OR (lieu va)) cam buc xa hanh gian cua tre*.