Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
van hanh » van thanh, ban hanh, van anh
cac xuc » cam xuc, cac nuoc, chat xuc
lai cua » dai cua, hai cua, lai chau
hieu va » lieu va, hieu qua
sach ly » sach y, sach lo, sach ty
hieu ve » hieu van
hang xa » hoang xa, hang va, hang ca
ly hang » ly quang
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 ly hang xa hoi. ((hieu ve) OR (hieu va)) cac xuc ((van hanh) or (may tinh)) lai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ly hang xa hoi. ((hieu ve) OR (hieu va)) cac xuc ((van hanh) OR (may tinh)) lai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ly hang xa hoi. ((hieu ve) OR (hieu va)) cac xuc ((van hanh) or (may tinh)) lai cua te".
• Adding a wildcard symbol may retrieve word variants: thuat sach ly hang xa hoi. ((hieu ve) OR (hieu va)) cac xuc ((van hanh) or (may tinh)) lai cua te*.