Perhaps you should try some spelling variations:
thanh tay » thanh tai, thanh toan, thanh thuy
thanh day » thanh dat, thanh dam, thanh dan
cham luc » cham soc, nhan luc, cham cuu
sach ky » sach y, sach ty, sach kem
va cham » va chat, va tham
hieu va » lieu va, hieu qua
nang ma » tang ma, sang ma, nang cao
luc va » duc va, tuc va, loc va
sac ky » cac ky, sai ky
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: te ((sach ky) or (sac ky)) nang ma hoa. hieu va cham luc va ((thanh day) OR (thanh tay)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ky) OR (sac ky)) nang ma hoa. hieu va cham luc va ((thanh day) OR (thanh tay)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ky) or (sac ky)) nang ma hoa. hieu va cham luc va ((thanh day) OR (thanh tay)) cua te".
• Adding a wildcard symbol may retrieve word variants: te ((sach ky) or (sac ky)) nang ma hoa. hieu va cham luc va ((thanh day) OR (thanh tay)) cua te*.