Perhaps you should try some spelling variations:
cach thuc » anh thuc, cac thu
hanh hai » thanh hai, nhanh hai, hang hai
van hanh » van thanh, ban hanh, van anh
xuc van » duc van, luc van, vuc van
hai cua » thai cua, dai cua, hoi cua
nang ma » tang ma, sang ma, nang cao
sach tu » sach thu, sach ty, sach uu
hieu ve » hieu va, hieu van
ma hoi » mai hoi, xa hoi, ma hoa
ve cam » ve cham, ve cac, va cam
cua su » qua su

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 tu) or (((cach tu) OR (cach thuc)))) nang ma hoi. hieu ve cam xuc van hanh hai cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach tu) OR (((cach tu) OR (cach thuc)))) nang ma hoi. hieu ve cam xuc van hanh hai cua su.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach tu) or (((cach tu) OR (cach thuc)))) nang ma hoi. hieu ve cam xuc van hanh hai cua su".
• Adding a wildcard symbol may retrieve word variants: te ((sach tu) or (((cach tu) OR (cach thuc)))) nang ma hoi. hieu ve cam xuc van hanh hai cua su*.