Perhaps you should try some spelling variations:
sach thien » sach thieu, sach tien, sach tren
cach thien » cach thiet, sach thieu, cai thien
cham xuc » chat xuc, cham soc, pham duc
hanh de » hanh ve, hanh kem
va hanh » van hanh, va thanh, va danh
hieu va » lieu va, hieu qua
nang ma » tang ma, sang ma, nang cao
ma hoi » mai hoi, xa hoi, ma hoa
de cua » le cua, te cua, dieu cua
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 thien) OR (cach thien)) nang ma hoi. hieu va ((cham xuc) or (cam xuc)) va hanh de cua su~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach thien) OR (cach thien)) nang ma hoi. hieu va ((cham xuc) OR (cam xuc)) va hanh de cua su.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach thien) OR (cach thien)) nang ma hoi. hieu va ((cham xuc) or (cam xuc)) va hanh de cua su".
• Adding a wildcard symbol may retrieve word variants: te ((sach thien) OR (cach thien)) nang ma hoi. hieu va ((cham xuc) or (cam xuc)) va hanh de cua su*.