Perhaps you should try some spelling variations:
dong cua » dung cua, cong cua, huong cua
hieu van » hieu va, thien van, lieu va
te sach » toc sach
truc va » thuc va, thuc vat, trung va
doi cua » dai cua, hoi cua
sach ly » sach y, sach lo, sach ty
nang ma » tang ma, sang ma, nang cao
ly nang » ky nang, ly hang, ly vang
ma hoi » mai hoi, xa hoi, ma hoa
tuc va » thuc va, tuc xa, duc va

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