Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
hieu van » hieu va, thien van, lieu va
can hanh » ban hanh, van hanh, dan hanh
cam luoc » cam xuc, cam lo, dai luoc
hanh di » hanh vi, hanh de, hang di
sach ty » sach y, sach tu, sach thu
nang xa » lang xa, nang ma, mang xa
di cua » dai cua, doi cua, de cua
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: thuat sach ty ((nang xa) OR (nang x)) hoi. hieu van ((cam luoc) or (tom luoc)) can hanh di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ty ((nang xa) OR (nang x)) hoi. hieu van ((cam luoc) OR (tom luoc)) can hanh di cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ty ((nang xa) OR (nang x)) hoi. hieu van ((cam luoc) or (tom luoc)) can hanh di cua te*".